text: In the Magic Land stories of Alexander Melentyevich Volkov, the prehistory is quite different. The land was created 6,000–7,000 years ago by a wizard named Hurricap, who was tired of people coming to him with requests, so he decided to find a place without them annoying him. He found a remote land and separated it from the rest of the world, along with putting the enchantments of eternal spring and talking animals (Volkov's version doesn't include any forms of immortality). However, he failed to notice that the land already contained people (since he was a giant, already suffering from nearsightedness in his advanced age, and the people in the Magic Land were much shorter than in other places), but, upon discovering the fact, decided that removing the enchantments would be unnecessary. Instead, he ordered the people to keep away from his castle. After that, the notable events included a conquest attempt by a sorceress named Arachna (Gurrikap was still alive, and put her in an enchanted sleep for 5,000 years. Her awakening formed the story for the fifth book in Volkov's series), an unsuccessful coup by a prince named Bofaro to overthrow his father about 1,000 years ago (He and his accomplices were banished to an underground cave and became the Magic Land's main source of metal and gems, an analogue to the Nomes), and the arrival of the Four Witches (which only occurred about 500 years ago in this continuity).

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text: Vision therapy can be prescribed when a comprehensive eye examination indicates that it is an appropriate treatment option. The specific program of therapy is based on the results of standardized tests and the person's signs and symptoms. Programs typically involve eye exercises and the use of lenses, prisms, filters, occluders, specialized instruments, and computer programs. The course of therapy may last weeks to several years, with intermittent monitoring by the eye doctor.

text: Vision therapy can be prescribed when a comprehensive eye examination indicates that it is an appropriate treatment option. The specific program of therapy is based on the results of standardized tests and the person's signs and symptoms. Programs typically involve eye exercises and the use of

entity_name: Lens (optics)

text: lenses

entity_name: Prism

text: prism

text: s,

entity_name: Optical filter

text: filters

text: , occluders, specialized instruments, and computer programs. The course of therapy may last weeks to several years, with intermittent monitoring by the eye doctor.

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answer: No

answer: No

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text: Attention was again tied to visual cues during an experiment conducted by Michael Posner in 1980. By determining which direction a stimulus will appear with an arrow, response time will increase if the correct direction is attended to. This ability to attend to a specific direction allows the visual system to prove its strength and allow for a faster reaction time. Because of the evidence that vision has on reaction time, it is clear that vision is capable of manipulating the perception an individual has on an environment, and results in what Tastevin considered visual capture. The inclusion of vision in determining where a stimulus will appear increases the efficacy at which a participate will react, proving that vision has a neurological effect on the attentional process. Although a task may be controlled in selecting a box, when vision is skewed to a certain direction by attention, the task becomes easier, and resolves the ambiguity of the scenario.

text: Attention was again tied to visual cues during an

entity_name: Posner cueing task

text: experiment

text: conducted by

entity_name: Michael Posner (psychologist)

text: Michael Posner

text: in 1980. By determining which direction a stimulus will appear with an arrow, response time will increase if the correct direction is attended to. This ability to attend to a specific direction allows the visual system to prove its strength and allow for a faster reaction time. Because of the evidence that vision has on reaction time, it is clear that vision is capable of manipulating the perception an individual has on an environment, and results in what Tastevin considered visual capture. The inclusion of vision in determining where a stimulus will appear increases the efficacy at which a participate will react, proving that vision has a neurological effect on the attentional process. Although a task may be controlled in selecting a box, when vision is skewed to a certain direction by attention, the task becomes easier, and resolves the ambiguity of the scenario.

method: Bert-ConvKNRM

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text: Spherical lenses and miotic eye drops can provide relief in some types of horizontal strabismus by biasing the neural link between convergence (orienting the lines of sight for near objects) and accommodation (focusing), and prism lenses can relieve diplopia (double vision) by refracting the visual axis, but these treatments don’t address the underlying muscular imbalance, and are not further considered here.

text: Spherical lenses and miotic eye drops can provide relief in some types of horizontal strabismus by biasing the neural link between convergence (orienting the lines of sight for near objects) and

entity_name: Accommodation (eye)

text: accommodation

text: (focusing), and prism lenses can relieve

entity_name: Diplopia

text: diplopia

text: (double vision) by refracting the visual axis, but these treatments don’t address the underlying muscular imbalance, and are not further considered here.

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answers: refracting

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

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text: Presbyopia is a natural part of the aging process. It is due to hardening of the lens of the eye causing the eye to focus light behind rather than on the retina when looking at close objects. It is a type of refractive error along with nearsightedness, farsightedness, and astigmatism. Diagnosis is by an eye exam.

text: Presbyopia is a natural part of the aging process. It is due to hardening of the

entity_name: Lens (anatomy)

text: lens of the eye

text: causing the eye to focus light behind rather than on the

entity_name: Retina

text: retina

text: when looking at close objects. It is a type of refractive error along with

entity_name: Near-sightedness

text: nearsightedness

entity_name: Far-sightedness

text: farsightedness

text: , and

entity_name: Astigmatism

text: astigmatism

text: . Diagnosis is by an

entity_name: Eye examination

text: eye exam

method: UNH-ecn

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answers: nearsightedness

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answers: hardening

answer: No

answer: No

answer: Yes

answer: No

answer: No

answer: 1

text: Peavy married his childhood friend Katie Alford in 2000, when he was 19 years old. As of August 2013, Jake and Katie and their four sons live in his hometown of Semmes, Alabama in the off-season. Peavy is legally blind without corrective lenses. He is an outspoken Christian, and has been interviewed about his religion. Peavy has a tattoo on his forearm with the word "Outsider" on it.

text: Peavy married his childhood friend Katie Alford in 2000, when he was 19 years old. As of August 2013, Jake and Katie and their four sons live in his hometown of

entity_name: Semmes, Alabama

text: Semmes, Alabama

text: in the off-season. Peavy is legally blind without corrective lenses. He is an outspoken Christian, and has been interviewed about his religion. Peavy has a tattoo on his forearm with the word "Outsider" on it.

method: ICT-DRMMTKS

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answers: legally blind without corrective lenses

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answers: myopia

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answers: legally blind without corrective lenses

answers: NDQ_018820

answers: legally blind

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: 1

text: - Schneider Kreuznach (a German manufacture) is currently providing 3 lenses with Tilt-Shift system (available Canon EF and Nikon F lens mount). One is the PC-TS SUPER-ANGULON 4.5/28, which has a similar focal length. Some of these lenses have been announced 2012, but today (2014) it is unclear if they are all available, especially the 28mm version (It is not possible to find a distributor). Correction April 26, 2015: Both the 28mm tilt-shift PC-TS SUPER-ANGULON 4.5/28 and the 50mm tilt-shift PC-TS SUPER-ANGULON 2.8/50 are available from New York City retailer B&H. The 90mm tilt-shift PC-TS MAKRO-SYMMAR 4.5/90 HM appears to have no US retailer at this time.

text: - Schneider Kreuznach (a German manufacture) is currently providing 3 lenses with Tilt-Shift system (available Canon EF and Nikon F lens mount). One is the PC-TS SUPER-ANGULON 4.5/28, which has a similar focal length. Some of these lenses have been announced 2012, but today (2014) it is unclear if they are all available, especially the 28mm version (It is not possible to find a distributor). Correction April 26, 2015: Both the 28mm tilt-shift PC-TS SUPER-ANGULON 4.5/28 and the 50mm tilt-shift PC-TS SUPER-ANGULON 2.8/50 are available from New York City retailer B&H. The 90mm tilt-shift PC-TS MAKRO-SYMMAR 4.5/90 HM appears to have no US retailer at this time.

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text: There are a number of issues that need to be addressed while using the visioning method. Vision comprises peoples’ values, wishes, fears and desires. In order to make the visioning process work it is necessary to ensure that it is not making an idealistic wish-list; that vision is an image of the future shared by a whole community; and that the vision is translatable into reality.

text: There are a number of issues that need to be addressed while using the visioning method. Vision comprises peoples’ values, wishes, fears and desires. In order to make the visioning process work it is necessary to ensure that it is not making an idealistic wish-list; that vision is an image of the future shared by a whole community; and that the vision is translatable into reality.

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text: Notable physical medical problems that can arise from using computers include Carpal Tunnel Syndrome, Computer Vision Syndrome, and Musculoskeletal problems.

text: Notable physical medical problems that can arise from using computers include Carpal Tunnel Syndrome, Computer Vision Syndrome, and Musculoskeletal problems.

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text: These glasses are not as tailored to the specific needs of the patient.  A difference in refractive error between the eyes or presence of astigmatism will not be accounted for.  The use of improper corrective lenses may not help or could even exacerbate binocular vision disorders.  Over the counter glasses do not usually correct for distance vision. Eyecare professionals (optometrists and ophthalmologists) are trained to determine the specific corrective lenses that will provide the clearest, most comfortable and most efficient vision, avoiding double vision and maximizing binocularity.  They can test to see if over the counter corrective lenses are appropriate.

text: These glasses are not as tailored to the specific needs of the patient.  A difference in refractive error between the eyes or presence of astigmatism will not be accounted for.  The use of improper corrective lenses may not help or could even exacerbate

text: binocular vision disorders

text: .  Over the counter glasses do not usually correct for distance vision. Eyecare professionals (optometrists and ophthalmologists) are trained to determine the specific corrective lenses that will provide the clearest, most comfortable and most efficient vision, avoiding double vision and maximizing binocularity.  They can test to see if over the counter corrective lenses are appropriate.

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answers: astigmatism

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: Sunglasses may also have corrective lenses.  Clip-on sunglasses or sunglass clips can be attached to another pair of glasses.  Some wrap-around sunglasses are large enough to be worn over top of another pair of glasses.  Otherwise, many people opt to wear contact lenses to correct their vision so that standard sunglasses can be used.

text: Sunglasses may also have corrective lenses.  Clip-on sunglasses or sunglass clips can be attached to another pair of glasses.  Some wrap-around sunglasses are large enough to be worn over top of another pair of glasses.  Otherwise, many people opt to wear

text: contact lens

text: es to correct their vision so that standard sunglasses can be used.

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answers: squished

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: Yes

answer: 1

text: If any facility does not meet federal standards when they apply for a license or registration, they can receive up to three inspections within a period 90 days to correct any problems. The licenses are not issued until all problems are corrected. The facilities have to wait for a minimum of 6 months before reapplying for a license if they do not pass inspection within the 90-day period. Legal action results if the facility operates a regulated business without a license.

text: If any facility does not meet federal standards when they apply for a license or registration, they can receive up to three inspections within a period 90 days to correct any problems. The licenses are not issued until all problems are corrected. The facilities have to wait for a minimum of 6 months before reapplying for a license if they do not pass inspection within the 90-day period. Legal action results if the facility operates a regulated business without a license.

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answers: NDQ_018818

answers: in myopia, images focus

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: unbalanced

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: TBI patients may have sensory problems, especially problems with vision; they may not be able to register what they are seeing or may be slow to recognize objects. Also, TBI patients often have difficulty with hand–eye coordination, causing them to seem clumsy or unsteady. Other sensory deficits include problems with hearing, smell, taste, or touch. Tinnitus, a ringing or roaring in the ears, may occur. A person with damage to the part of the brain that processes taste or smell may perceive a persistent bitter taste or noxious smell. Damage to the part of the brain that controls the sense of touch may cause a TBI patient to develop persistent skin tingling, itching, or pain. These conditions are rare and difficult to treat.

text: TBI patients may have sensory problems, especially problems with

text: vision

text: ; they may not be able to register what they are seeing or may be slow to recognize objects. Also, TBI patients often have difficulty with hand–eye coordination, causing them to seem clumsy or unsteady. Other sensory deficits include problems with

text: hearing

text: smell

text: taste

text: , or

text: touch

text: Tinnitus

text: , a ringing or roaring in the ears, may occur. A person with damage to the part of the brain that processes taste or smell may perceive a persistent bitter taste or noxious smell. Damage to the part of the brain that controls the sense of touch may cause a TBI patient to develop persistent skin tingling, itching, or pain. These conditions are rare and difficult to treat.

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answers: TBI patients may have sensory problems

answers: NDQ_018818

answers: Myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: unsteady

answer: No

answer: No

answer: Yes

answer: No

answer: No

answer: 1

text: The Intraocular Lens for Visually Impaired Patients (IOLVIP or IOL-VIP) is an intraocular lens system aiming to treat patients with poor central vision due to age related macular degeneration. The IOLVIP procedure involves the surgical implantation of a pair of lenses that magnify and divert the image using the principals of the Galilean telescope. By arranging the lenses it is possible to direct the image to a different part of the eye than the fovea, which is the centre of the macula and is usually used for detailed vision. The magnified image is projected on to a part of the eye not normally used for detailed vision. Magnification and patient training are both necessary to allow useful vision from this part of the retina.

text: The Intraocular Lens for Visually Impaired Patients (IOLVIP or IOL-VIP) is an

text: intraocular lens

text: system aiming to treat patients with poor central vision due to age related

text: macular degeneration

text: . The IOLVIP procedure involves the surgical implantation of a pair of lenses that magnify and divert the image using the principals of the

text: Galilean telescope

text: . By arranging the lenses it is possible to direct the image to a different part of the eye than the

text: fovea

text: , which is the centre of the

text: macula

text: and is usually used for detailed vision. The magnified image is projected on to a part of the eye not normally used for detailed vision. Magnification and patient training are both necessary to allow useful vision from this part of the retina.

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answers: myopia is also called farsightedness

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answers: the centre of the macula

answers: NDQ_018819

answers: central vision

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answers: not normally used

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: 1

text: Among other recommendations to address these problems, the Panel suggested "Reorganizing the Youth and Adult Correctional Agency".  The Agency had consisted of "the Department of Corrections, the Department of the Youth Authority, the Board of Prison Terms, the Board of Corrections, the Commission on Correctional Peace Officer Standards and Training, the Narcotic Addict Evaluation Board and the Youth Authority Board."

text: Among other recommendations to address these problems, the Panel suggested "Reorganizing the Youth and Adult Correctional Agency".  The Agency had consisted of "the Department of Corrections, the Department of the Youth Authority, the Board of Prison Terms, the Board of Corrections, the Commission on Correctional

text: Peace Officer Standards and Training

text: , the Narcotic Addict Evaluation Board and the Youth Authority Board."

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answers: Myopia

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answers: myopia

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answers: Hyperopia

answers: NDQ_018820

answers: unbalanced

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Many domestic horses (about a third) tend to have myopia (near-sightedness), with few being far-sighted. Wild horses, however, are usually far-sighted.

text: Many domestic horses (about a third) tend to have

text: myopia

text: (near-sightedness), with few being far-sighted. Wild horses, however, are usually far-sighted.

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answers: far-sighted

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answers: near

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answers: far-sighted

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answers: far-sighted

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: In corneal disorders where vision correction is not possible by using contact lenses, intrastromal corneal ring segments may be used to flatten the cornea, which is intended to relieve the nearsightedness and astigmatism. In this procedure, an ophthalmologist makes an incision in the cornea of the eye, and inserts two crescent or semi-circular shaped ring segments between the layers of the corneal stroma, one on each side of the pupil. Intrastromal corneal rings were approved in 2004 by the Food and Drug Administration for people with keratoconus who cannot adequately correct their vision with glasses or contact lenses. They were approved under the Humanitarian Device Exemption, which means the manufacturer did not have to demonstrate effectiveness.

text: In corneal disorders where vision correction is not possible by using contact lenses,

text: intrastromal corneal ring segments

text: may be used to flatten the cornea, which is intended to relieve the

text: nearsightedness

text: and

text: astigmatism

text: . In this procedure, an

text: ophthalmologist

text: makes an incision in the cornea of the eye, and inserts two crescent or semi-circular shaped ring segments between the layers of the corneal

text: stroma

text: , one on each side of the

text: pupil

text: . Intrastromal corneal rings were approved in 2004 by the

text: Food and Drug Administration

text: for people with keratoconus who cannot adequately correct their vision with glasses or contact lenses. They were approved under the

text: Humanitarian Device Exemption

text: , which means the manufacturer did not have to demonstrate effectiveness.

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answers: nearsightedness

answers: NDQ_018818

answers: nearsightedness

answers: NDQ_018819

answers: corneal disorders

answers: NDQ_018820

answers: flatten the cornea

answer: No

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: Fitting: Progressive lenses require careful placement relative to the wearer's pupil centre for a distance-viewing reference position. Incorrect specification of the fitting location can cause problems for the wearer including (depending on the design of the lens) narrow fields of view, clear vision in one eye only, on-axis blur, and the need to alter the natural head position in order to see clearly.

text: Fitting: Progressive lenses require careful placement relative to the wearer's pupil centre for a distance-viewing reference position. Incorrect specification of the fitting location can cause problems for the wearer including (depending on the design of the lens) narrow fields of view, clear vision in one eye only, on-axis blur, and the need to alter the natural head position in order to see clearly.

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answers: 0

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answers: farsightedness

answers: NDQ_018818

answers: on-axis

answers: NDQ_018819

answers: narrow fields of view

answers: NDQ_018820

answers: one eye only

answer: No

answer: Yes

answer: No

answer: No

answer: No

answer: 1

text: Lenticular lenses are sometimes used as corrective lenses for improving vision. A bifocal lens could be considered a simple example.

text: Lenticular lenses are sometimes used as

text: corrective lens

text: es for improving vision. A

text: bifocal lens

text: could be considered a simple example.

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answers: 0

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answers: 0

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answers: 0

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answers: 4

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answers: 0

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answers: 4

answers: NDQ_018820

answers: 0

answers: NDQ_018817

answers: myopia

answers: NDQ_018818

answers: Myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: hyperopic

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: Recent changes to the British Columbia Opticians regulations allow qualified opticians in that province to test a persons vision and prepare an assessment of the corrective lenses required for a client. Using the results of the assessment an optician is able to prepare and dispense eyeglasses or contact lenses. Opticians in Alberta are also permitted, under certain conditions, to refract and prepare and dispense eyeglasses and contact lenses

text: Recent changes to the British Columbia Opticians regulations allow qualified opticians in that province to test a persons vision and prepare an assessment of the corrective lenses required for a client. Using the results of the assessment an optician is able to prepare and dispense eyeglasses or contact lenses. Opticians in Alberta are also permitted, under certain conditions, to refract and prepare and dispense eyeglasses and contact lenses

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

answers: tqa2:L_1064/T_4975/9281e063c2e2f50cb5f317c62cd46086

answers: 0

answers: NDQ_018817

answers: 0

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answers: 4

answers: NDQ_018820

answers: 0

answers: NDQ_018817

answers: corrective lenses

answers: NDQ_018818

answers: Myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: refracted

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: As corrective power increases, even optimally designed lenses will have distortion that can be noticed by a user. This particularly affects individuals that use the off-axis areas of their lenses for visually demanding tasks. For individuals sensitive to lens errors, the best way to eliminate lens induced aberrations is to use contact lenses. Contacts eliminate all these aberrations since the lens then moves with the eye.

text: As corrective power increases, even optimally designed lenses will have distortion that can be noticed by a user. This particularly affects individuals that use the off-axis areas of their lenses for visually demanding tasks. For individuals sensitive to lens errors, the best way to eliminate lens induced aberrations is to use contact lenses. Contacts eliminate all these aberrations since the lens then moves with the eye.

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answers: 4

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answers: 0

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answers: 4

answers: NDQ_018820

answers: 0

answers: NDQ_018817

answers: off-axis areas

answers: NDQ_018818

answers: off-axis

answers: NDQ_018819

answers: off-axis

answers: NDQ_018820

answers: off-axis

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: 5. Where appropriate, prismatic correction can be used, either temporarily or permanently, to relieve symptoms of double vision.

text: 5. Where appropriate, prismatic correction can be used, either temporarily or permanently, to relieve symptoms of double vision.

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answers: 4

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answers: 0

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answers: 4

answers: NDQ_018820

answers: 0

answers: NDQ_018817

answers: double vision

answers: NDQ_018818

answers: in myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: hyperopic

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: Yes

answer: 1

text: Larger vehicles can create visibility problems for other drivers by obscuring their view of traffic lights, signs, and other vehicles on the road, plus the road itself. Depending on design, drivers of some larger vehicles may themselves suffer from poor visibility to the side and the rear. Poor rearward vision has led to many "backover deaths" where vehicles have run over small children when backing out of driveways. The problem of backover deaths has become so widespread that reversing cameras are being installed on some vehicles to improve rearward vision.

text: Larger vehicles can create visibility problems for other drivers by obscuring their view of traffic lights, signs, and other vehicles on the road, plus the road itself. Depending on design, drivers of some larger vehicles may themselves suffer from poor visibility to the side and the rear. Poor rearward vision has led to many "backover deaths" where vehicles have run over small children when backing out of driveways. The problem of backover deaths has become so widespread that reversing cameras are being installed on some vehicles to improve rearward vision.

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answers: 0

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answers: 0

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answers: 4

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answers: 0

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answers: myopia

answers: NDQ_018818

answers: myopia

answers: NDQ_018819

answers: Poor rearward vision

answers: NDQ_018820

answers: obscuring

answer: Yes

answer: Yes

answer: No

answer: No

answer: No

answer: 1

text: Strong Guy is nearsighted and wears corrective "bottlecap" lenses.

text: Strong Guy is

text: nearsighted

text: and wears corrective "bottlecap" lenses.

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answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: In physics, "refraction" is the mechanism that bends the path of light through the eye.  Refractive error is an optical abnormality in which the shape of the eye fails to bring light into sharp focus on the retina, resulting in blurred or distorted vision. Examples of refractive error are myopia, hyperopia, and astigmatism.  In optometry, a "refraction" procedure is the measurement of refractive error by an eye care professional, usually for the purpose of correcting the error with glasses, contact lenses, or refractive surgery.  A refraction procedure consists of two parts: objective and subjective.

text: In physics, "

text: refraction

text: " is the mechanism that bends the path of light through the eye.

text: Refractive error

text: is an optical abnormality in which the shape of the eye fails to bring light into sharp focus on the retina, resulting in blurred or distorted vision. Examples of refractive error are

text: myopia

text: hyperopia

text: , and

text: astigmatism

text: .  In optometry, a "refraction" procedure is the measurement of refractive error by an eye care professional, usually for the purpose of correcting the error with

text: glasses

text: contact lenses

text: , or

text: refractive surgery

text: .  A refraction procedure consists of two parts: objective and subjective.

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answers: Refractive error

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answers: sharp focus on the retina

answers: NDQ_018819

answers: hyperopia

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answers: shape

answer: Yes

answer: Yes

answer: No

answer: Yes

answer: No

answer: 1

text: Some people find good vision correction and comfort with a "piggyback" lens combination, in which RGP lenses are worn over soft lenses, both providing a degree of vision correction. One form of piggyback lens makes use of a soft lens with a countersunk central area to accept the rigid lens. Fitting a piggyback lens combination requires experience on the part of the lens fitter, and tolerance on the part of the person with keratoconus.

text: Some people find good vision correction and comfort with a "piggyback" lens combination, in which RGP lenses are worn over soft lenses, both providing a degree of vision correction. One form of piggyback lens makes use of a soft lens with a countersunk central area to accept the rigid lens. Fitting a piggyback lens combination requires experience on the part of the lens fitter, and tolerance on the part of the person with keratoconus.

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answers: NDQ_018820

answers: countersunk

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: Yes

answer: 1

text: By shifting corrective lenses off axis, images seen through them can be displaced in the same way that a prism displaces images. Eye care professionals use prisms, as well as lenses off axis, to treat various orthoptics problems:

text: By shifting

text: corrective lens

text: es off

text: axis

text: , images seen through them can be displaced in the same way that a prism displaces images.

text: Eye care professional

text: s use prisms, as well as lenses off axis, to treat various

text: orthoptics

text: problems:

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answers: myopia

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answers: off axis

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answers: hyperopia

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answers: off axis

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: Yes

answer: 1

text: For example, the size of an object, the orientation of the object, and its distance from the observer are conflated in the retinal image. For any given projection on the retina there are an infinite number of pairings of object size, orientation and distance that could have given rise to that projection on the retina. Because the image on the retina does not specify which pairing did in fact cause the image, this and other aspects of vision qualify as an inverse problem.

text: For example, the size of an object, the orientation of the object, and its distance from the observer are conflated in the retinal image. For any given projection on the

text: retina

text: there are an infinite number of pairings of object size, orientation and distance that could have given rise to that projection on the

text: retina

text: . Because the image on the retina does not specify which pairing did in fact cause the image, this and other aspects of vision qualify as an

text: inverse problem

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answers: farsightedness

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answers: on the retina

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: conflated

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: According to the American Optometric Association there are approximately from 3 to 9 million people with binocular vision problems. If an individual lacks binocular vision, then a 3D perspective is impossible and simply unachievable. Watching shows and/or movies in 3D can help to point out those problems earlier, working as a screening check and noticing the lack of binocular vision so that a proper treatment can be applied. These problems may also reflect upon a fundamental vision-related problem not entirely linked to binocular vision issues.Symptoms sign that an eye condition is present, which may be:

text: According to the American Optometric Association there are approximately from 3 to 9 million people with binocular vision problems. If an individual lacks binocular vision, then a 3D perspective is impossible and simply unachievable. Watching shows and/or movies in 3D can help to point out those problems earlier, working as a screening check and noticing the lack of binocular vision so that a proper treatment can be applied. These problems may also reflect upon a fundamental vision-related problem not entirely linked to binocular vision issues.Symptoms sign that an eye condition is present, which may be:

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answers: binocular vision problems

answers: NDQ_018818

answers: 3D

answers: NDQ_018819

answers: binocular vision problems

answers: NDQ_018820

answers: unbalanced

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: It is important that people be examined by someone specializing in low vision care prior to other rehabilitation training to rule out potential medical or surgical correction for the problem and to establish a careful baseline refraction and prescription of both normal and low vision glasses and optical aids. Only a doctor is qualified to evaluate visual functioning of a compromised visual system effectively. The American Medical Association provide an approach to evaluating visual loss as it affects an individual's ability to perform activities of daily living.

text: It is important that people be examined by someone specializing in low vision care prior to other rehabilitation training to rule out potential medical or surgical correction for the problem and to establish a careful baseline refraction and prescription of both normal and low vision glasses and optical aids. Only a doctor is qualified to evaluate visual functioning of a compromised visual system effectively. The

text: American Medical Association

text: provide an approach to evaluating visual loss as it affects an individual's ability to perform activities of daily living.

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answers: low vision

answers: NDQ_018818

answers: refraction

answers: NDQ_018819

answers: low vision

answers: NDQ_018820

answers: compromised

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: Gregg Feinerman is a LASIK surgeon practicing in Newport Beach, California.  He is a board-certified ophthalmologist who was fellowship-trained at Canada's Gimbel Eye Centre, founded by Dr. Howard V. Gimbel in 1964. At that institution, Feinerman was able to gain experience with many different refractive surgical procedures. LASIK is a 15-minute procedure that uses lasers to correct common vision problems, such as: nearsightedness, farsightedness, astigmatism, and age-related vision loss called presbyopia. Dr. Feinerman also treats cataracts.  Crystalens, the latest FDA-approved intraocular lens (IOL) for cataract treatment, is specially designed to improve vision loss caused by cataracts, but can also correct presbyopia.  Shortly after FDA approval in 2003, Feinerman performed the first Crystalens surgery in Southern California.  Since then, he has performed the most Crystalens surgeries in the state of California.  His practice, Feinerman Vision Center, was established in 2001 and is now recognized as one of the nation’s foremost medical practices dedicated to vision correction.

text: Gregg Feinerman is a

text: LASIK

text: surgeon practicing in

text: Newport Beach, California

text: .  He is a board-certified ophthalmologist who was fellowship-trained at Canada's Gimbel Eye Centre, founded by Dr. Howard V. Gimbel in 1964. At that institution, Feinerman was able to gain experience with many different refractive surgical procedures. LASIK is a 15-minute procedure that uses lasers to correct common vision problems, such as: nearsightedness, farsightedness, astigmatism, and age-related vision loss called presbyopia. Dr. Feinerman also treats cataracts.  Crystalens, the latest FDA-approved

text: intraocular lens

text: (IOL) for cataract treatment, is specially designed to improve vision loss caused by cataracts, but can also correct presbyopia.  Shortly after FDA approval in 2003, Feinerman performed the first Crystalens surgery in Southern California.  Since then, he has performed the most Crystalens surgeries in the state of California.  His practice, Feinerman Vision Center, was established in 2001 and is now recognized as one of the nation’s foremost medical practices dedicated to vision correction.

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answers: farsightedness

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answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: A toric lens is a lens with different optical power and focal length in two orientations perpendicular to each other. One of the lens surfaces is shaped like a "cap" from a torus (see figure at right), while the other one usually is spherical. Toric lenses are primarily used in eyeglasses, contact lenses and intraocular lenses to correct astigmatism.

text: A toric lens is a

text: lens

text: with different

text: optical power

text: and

text: focal length

text: in two orientations perpendicular to each other. One of the lens surfaces is shaped like a "cap" from a

text: torus

text: (see figure at right), while the other one usually is

text: spherical

text: . Toric lenses are primarily used in

text: eyeglass

text: es,

text: contact lens

text: es and

text: intraocular lens

text: es to correct

text: astigmatism

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answers: perpendicular

answers: NDQ_018819

answers: astigmatism

answers: NDQ_018820

answers: perpendicular

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: 1

text: A corrective lens is a lens worn in front of the eye, mainly used to treat myopia, hyperopia, astigmatism, and presbyopia. Glasses  or "spectacles" are worn on the face a short distance in front of the eye.  Contact lenses are worn directly on the surface of the eye. Intraocular lenses are surgically implanted most commonly after cataract removal, but recently for purely refractive purposes. Myopia (near-sightedness) requires a divergent lens, whereas hyperopia (far-sightedness) requires a convergent lens.

text: A corrective lens is a

text: lens

text: worn in front of the

text: eye

text: , mainly used to treat

text: myopia

text: hyperopia

text: astigmatism

text: , and

text: presbyopia

text: Glasses

text: or "spectacles" are worn on the face a short distance in front of the eye.

text: Contact lens

text: es are worn directly on the surface of the eye.

text: Intraocular lens

text: es are surgically implanted most commonly after

text: cataract

text: removal, but recently for

text: purely refractive purposes

text: . Myopia (near-sightedness) requires a divergent lens, whereas hyperopia (far-sightedness) requires a convergent lens.

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answers: hyperopia

answers: NDQ_018818

answers: near-sightedness

answers: NDQ_018819

answers: Myopia

answers: NDQ_018820

answers: far-sightedness

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: In physical cosmology, current observations in favor of an accelerating universe imply the existence of a tiny, but nonzero cosmological constant.  This is a hierarchy problem very similar to that of the Higgs boson mass problem, since the cosmological constant is also very sensitive to quantum corrections.  It is complicated, however, by the necessary involvement of general relativity in the problem and may be a clue that we do not understand gravity on long distance scales (such as the size of the universe today).  While quintessence has been proposed as an explanation of the acceleration of the Universe, it does not actually address the cosmological constant hierarchy problem in the technical sense of addressing the large quantum corrections.  Supersymmetry does not address the cosmological constant problem, since supersymmetry cancels the M contribution, but not the M one (quadratically diverging).

text: In

text: physical cosmology

text: , current observations in favor of an

text: accelerating universe

text: imply the existence of a tiny, but nonzero

text: cosmological constant

text: .  This is a hierarchy problem very similar to that of the Higgs boson mass problem, since the cosmological constant is also very sensitive to quantum corrections.  It is complicated, however, by the necessary involvement of

text: general relativity

text: in the problem and may be a clue that we do not understand gravity on long distance scales (such as the size of the

text: universe

text: today).  While

text: quintessence

text: has been proposed as an explanation of the acceleration of the Universe, it does not actually address the cosmological constant hierarchy problem in the technical sense of addressing the large

text: quantum correction

text: s.  Supersymmetry does not address the cosmological constant problem, since supersymmetry cancels the M contribution, but not the M one (quadratically diverging).

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answers: Myopia is also called farsightedness

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text: Unfortunately, producing an entirely new product from scratch is never without initial problems, and the Vision suffered from a few. An off-idle carburetion quirk, known as the "Vision stumble", meant the first year machines were prone to initial stuttering on part and full-throttle takeoff. The "Vision stumble" problem, after months of research, was finally solved by racer Marc Salvisberg, who later started Factory Pro Tuning. The problem, it seemed, wasn't a Yamaha development problem at all, but was actually a lean spot, just off idle, caused by what appeared to be residual casting sand that filled the off-idle bleed holes at the throttle butterfly plate in the Weber-style Mikuni carb. That information was immediately relayed to Yamaha U.S., where it was relayed to Japan and verified. The 1983 models carbureted essentially flawlessly. (This claim of a "solution" is disputed by experienced XZ550 forum contributors as a myth - the likelihood that residual casting sand consistently affected the performance of all the 1982 models is highly improbable. Meanwhile, other riders have successfully overcome the "Vision stumble" in their 1982 models without changing carburettors.)

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text: Positive relative accommodation (PRA) is a measure of the maximum ability to stimulate accommodation while maintaining clear, single binocular vision. This measurement is typically obtained by an orthoptist, ophthalmologist or optometrist during an eye examination using a phoropter. After the patient's distance correction is established, he is instructed to view small letters on a card 40 cm from the eyes. The examiner adds lenses in −0.25 diopter increments until the patient first reports that they become blurry.  The total value of the lenses added to reach this point is the PRA value.

text: Positive relative accommodation (PRA) is a measure of the maximum ability to stimulate

text: accommodation

text: while maintaining clear, single

text: binocular vision

text: . This measurement is typically obtained by an

text: orthoptist

text: ophthalmologist

text: or

text: optometrist

text: during an

text: eye examination

text: using a

text: phoropter

text: . After the patient's distance correction is established, he is instructed to view small letters on a card 40

text: cm

text: from the

text: eye

text: s. The examiner adds lenses in −0.25 diopter increments until the patient first reports that they become blurry.  The total value of the lenses added to reach this point is the PRA value.

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text: The young human eye can change focus from distance (infinity) to as near as 6.5 cm from the eye. This dramatic change in focal power of the eye of approximately 15 dioptres (the reciprocal of focal length in metres) occurs as a consequence of a reduction in zonular tension induced by ciliary muscle contraction. This process can occur in as little as 350 milliseconds . The amplitude of accommodation declines with age. By the fifth decade of life the accommodative amplitude can decline so that the near point of the eye is more remote than the reading distance. When this occurs the patient is presbyopic. Once presbyopia occurs, those who are emmetropic (do not require optical correction for distance vision) will need an optical aid for near vision; those who are myopic (nearsighted and require an optical correction for distance vision), will find that they see better at near without their distance correction; and those who are hyperopic (farsighted) will find that they may need a correction for both distance and near vision. Note that these effects are most noticeable when the pupil is large; i.e. in dim light. The age-related decline in accommodation occurs almost universally to less than 2 dioptres by the time a person reaches 45 to 50 years, by which time most of the population will have noticed a decrease in their ability to focus on close objects and hence require glasses for reading or bifocal lenses. Accommodation decreases to about 1 dioptre at the age of 70 years. The dependency of accommodation amplitude on age is graphically summarized by Duane’s classical curves.

text: The young human eye can change focus from distance (infinity) to as near as 6.5 cm from the eye. This dramatic change in focal power of the eye of approximately 15 dioptres (the reciprocal of focal length in metres) occurs as a consequence of a reduction in

text: zonular

text: tension induced by

text: ciliary muscle

text: contraction. This process can occur in as little as 350 milliseconds . The amplitude of accommodation declines with age. By the fifth decade of life the accommodative amplitude can decline so that the near point of the eye is more remote than the reading distance. When this occurs the patient is

text: presbyopic

text: . Once

text: presbyopia

text: occurs, those who are

text: emmetropic

text: (do not require optical correction for distance vision) will need an optical aid for near vision; those who are

text: myopic

text: (nearsighted and require an optical correction for distance vision), will find that they see better at near without their distance correction; and those who are

text: hyperopic

text: (farsighted) will find that they may need a correction for both distance and near vision. Note that these effects are most noticeable when the

text: pupil

text: is large; i.e. in dim light. The age-related decline in accommodation occurs almost universally to less than 2 dioptres by the time a person reaches 45 to 50 years, by which time most of the population will have noticed a decrease in their ability to focus on close objects and hence require glasses for reading or bifocal lenses. Accommodation decreases to about 1 dioptre at the age of 70 years. The dependency of accommodation amplitude on age is graphically summarized by

text: Duane’s

text: classical curves.

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answer: Yes

answer: No

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text: Like all Nikon SLRs, the F-501 accepts Nikon's F-mount lenses, but will only autofocus with lenses designated "AF."  Likewise, fully automatic exposure will only work with AI-S type lenses, including many autofocus lenses (G-type lenses are not supported by the F-501). In both cases, the camera will function with lenses without these abilities, but will not autofocus or may not have full auto exposure capabilities. AF lenses designated "D" add no functionality to the F-501, and "AF-S" and "VR" lenses will not perform their special functions if attached to an F-501.

text: Like all Nikon SLRs, the F-501 accepts Nikon's

text: F-mount

text: lenses, but will only autofocus with lenses designated "AF."  Likewise, fully automatic exposure will only work with AI-S type lenses, including many autofocus lenses (G-type lenses are not supported by the F-501). In both cases, the camera will function with lenses without these abilities, but will not autofocus or may not have full auto exposure capabilities. AF lenses designated "D" add no functionality to the F-501, and "AF-S" and "VR" lenses will not perform their special functions if attached to an F-501.

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answer: No

answer: No

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text: Most eagles have excellent vision. Generally, eagles do not suffer from myopia (nearsightedness) and hyperopia (farsightedness); those who have these defects cannot hunt easily and eventually starve to death. Eagles have the unique feature of the pecten. Its function is not clearly understood, but the general belief is that it helps to nourish the retina, keeps it healthy without blood vessels, facilitates the fluids to flow through the vitreous body at an appropriate pressure, absorbs light to minimize any reflections inside the eye that could impair vision, helps perceive motion, creates a protective shade from the sun, and senses magnetic fields.

text: Most eagles have excellent vision. Generally, eagles do not suffer from

text: myopia

text: (nearsightedness) and

text: hyperopia

text: (farsightedness); those who have these defects cannot hunt easily and eventually starve to death. Eagles have the unique feature of the

text: pecten

text: . Its function is not clearly understood, but the general belief is that it helps to nourish the retina, keeps it healthy without blood vessels, facilitates the fluids to flow through the vitreous body at an appropriate pressure, absorbs light to minimize any reflections inside the eye that could impair vision, helps perceive motion, creates a protective shade from the sun, and senses magnetic fields.

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answer: No

answer: No

answer: No

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text: There is no requirement to stop at only one cycle of corrections. A partially corrected solution can be re-used as the new starting point for yet another cycle of perturbations and corrections. The common difficulty with the method is that usually the corrections progressively make the new solutions very much more complicated, so each cycle is much more difficult to manage than the previous cycle of corrections. Newton is reported to have said, regarding the problem of the Moon's orbit "It causeth my head to ache."

text: There is no requirement to stop at only one cycle of corrections. A partially corrected solution can be re-used as the new starting point for yet another cycle of perturbations and corrections. The common difficulty with the method is that usually the corrections progressively make the new solutions very much more complicated, so each cycle is much more difficult to manage than the previous cycle of corrections.

text: Newton

text: is reported to have said, regarding the problem of the

text: Moon

text: 's orbit "It causeth my head to ache."

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answers: partially corrected

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Alcohol myopia is a cognitive-physiological theory on alcohol abuse in which many of alcohol's social and stress-reducing effects, which may underlie its addictive capacity, are explained as a consequence of alcohol's narrowing of perceptual and cognitive functioning. The alcohol myopia model posits that rather than disinhibit, alcohol produces a myopia effect that causes users to pay more attention to salient environmental cues and less attention to less salient cues. Therefore, alcohol's myopic effects cause intoxicated people to respond almost exclusively to their immediate environment. This "nearsightedness" limits their ability to consider future consequences of their actions as well as regulate their reactive impulses.

text: Alcohol myopia is a

text: cognitive

text: physiological

text: theory on

text: alcohol abuse

text: in which many of

text: alcohol

text: 's social and

text: stress

text: -reducing effects, which may underlie its

text: addictive

text: capacity, are explained as a consequence of alcohol's narrowing of

text: perceptual

text: and cognitive functioning. The alcohol myopia model posits that rather than disinhibit, alcohol produces a

text: myopia

text: effect that causes users to pay more attention to salient environmental cues and less attention to less salient cues. Therefore, alcohol's myopic effects cause intoxicated people to respond almost exclusively to their immediate environment. This "nearsightedness" limits their ability to consider future consequences of their actions as well as regulate their reactive impulses.

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answers: nearsighted

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Vision Express is British company established in 1988 that sells spectacles and contact lenses.

text: Vision Express is British company established in 1988 that sells

text: spectacles

text: and

text: contact lenses

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answers: myopia

answers: NDQ_018818

answers: Myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: hyperopic

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Eye charts do not provide information on peripheral vision, depth perception, color perception, or contrast sensitivity and therefore do not sufficiently characterize the quality of vision, nor assess the health of the eyes. A complete eye examination will include other tests. However, eye charts are useful in deciding whether the patients need eyeglasses or contact lenses to correct their distance visions, and assessing how effective their refractive corrections are.

text: Eye charts do not provide information on

text: peripheral vision

text: depth perception

text: color perception

text: , or

text: contrast sensitivity

text: and therefore do not sufficiently characterize the quality of vision, nor assess the health of the eyes. A complete eye examination will include other tests. However, eye charts are useful in deciding whether the patients need eyeglasses or

text: contact lenses

text: to correct their distance visions, and assessing how effective their refractive corrections are.

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answers: distance visions

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answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: hyperopic

answer: No

answer: No

answer: Yes

answer: No

answer: No

answer: 1

text: In July 1999, LCA-Vision introduced the "LasikPlus" name at its laser vision correction center in Baltimore, Maryland.

text: In July 1999, LCA-Vision introduced the "LasikPlus" name at its laser vision correction center in Baltimore, Maryland.

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answer: No

answer: No

answer: Yes

answer: No

answer: No

answer: 1

text: Over the last decade, flight surgeons and scientists at Nasa have seen a pattern of vision problems in astronauts on long-duration space missions. The syndrome, known as visual impairment intracranial pressure (VIIP), has been reported in nearly two-thirds of space explorers after long periods spent aboard the International Space Station (ISS)

text: Over the last decade, flight surgeons and scientists at Nasa have seen a pattern of vision problems in astronauts on long-duration space missions. The syndrome, known as visual impairment intracranial pressure (VIIP), has been reported in nearly two-thirds of space explorers after long periods spent aboard the International Space Station (ISS)

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answer: No

answer: No

answer: No

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text: The original two element Gauss was a telescope objective lens consisting of closely spaced positive and negative menisci, invented in 1817 Carl Friedrich Gauss as an improvement to the Fraunhofer telescope objective by adding a meniscus lens to its single convex and concave lens design. Alvan Clark and Bausch & Lomb further refined the design in 1888 by taking two of these lenses and placing them back to back making a "double Gauss" with indifferent photographic results. Current double Gauss lenses can be traced back to an 1895 improved design, when Paul Rudolph of Carl Zeiss Jena thickened the interior negative menisci and converted to them to cemented doublets of two elements of equal refraction but differing dispersion in the Zeiss Planar of 1896 to correct for chromatic aberration. It was the original six element symmetric f/4.5 Double Gauss lens. Horace William Lee added a slight asymmetry to the Planar in 1920, and created the Taylor, Taylor & Hobson Series 0 (also called the Lee Opic, UK) f/2 lens. It was commercially unsuccessful, but its asymmetry is the foundation of the modern Double Gauss, including the Zeiss Biotar. Later the design was developed with additional glasses to give high-performance lenses of wide aperture. The main development was due to Taylor Hobson in the 1920s, resulting in the f/2.0 Opic and later the Speed Panchro designs, which were licensed to various other manufacturers. In 1927, Lee modified the Opic design and increase the maximum aperture up to f/1.4, that is the Ultra Panchro lens. Further improvement was done by Lee in 1930, the Super Speed Panchro. It was a f/1.5 fast design with 7 glasses in 5 groups, which soon became new popular of fast speed lens type and was cited by many lens manufacturers until the 1960s.

text: The original two element Gauss was a telescope

text: objective lens

text: consisting of closely spaced positive and negative menisci, invented in 1817

text: Carl Friedrich Gauss

text: as an improvement to the

text: Fraunhofer

text: telescope objective

text: by adding a

text: meniscus lens

text: to its single

text: convex

text: and

text: concave

text: lens design.

text: Alvan Clark

text: and Bausch & Lomb further refined the design in 1888 by taking two of these lenses and placing them back to back making a "double Gauss" with indifferent photographic results. Current double Gauss lenses can be traced back to an 1895 improved design, when

text: Paul Rudolph

text: of

text: Carl Zeiss Jena

text: thickened the interior negative menisci and converted to them to cemented

text: doublets

text: of two elements of equal refraction but differing dispersion in the

text: Zeiss Planar

text: of 1896 to correct for

text: chromatic aberration

text: . It was the original six element symmetric f/4.5 Double Gauss lens.

text: Horace William Lee

text: added a slight asymmetry to the Planar in 1920, and created the Taylor, Taylor & Hobson Series 0 (also called the Lee Opic, UK) f/2 lens. It was commercially unsuccessful, but its asymmetry is the foundation of the modern Double Gauss, including the Zeiss Biotar. Later the design was developed with additional glasses to give high-performance lenses of wide aperture. The main development was due to

text: Taylor Hobson

text: in the 1920s, resulting in the f/2.0

text: Opic

text: and later the

text: Speed Panchro

text: designs, which were licensed to various other manufacturers. In 1927, Lee modified the Opic design and increase the maximum aperture up to f/1.4, that is the Ultra Panchro lens. Further improvement was done by Lee in 1930, the Super Speed Panchro. It was a f/1.5 fast design with 7 glasses in 5 groups, which soon became new popular of fast speed lens type and was cited by many lens manufacturers until the 1960s.

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answers: NDQ_018817

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answers: NDQ_018820

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answers: NDQ_018817

answers: negative menisci

answers: NDQ_018818

answers: indifferent photographic results

answers: NDQ_018819

answers: chromatic aberration

answers: NDQ_018820

answers: concave

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Primarily the treatment is for condition called presbyopia. Laser Blended Vision can be achieved through laser eye surgery, usually performed as LASIK, although surface laser eye surgery PRK or LASEK can be used to produce the effect. Laser Blended Vision works by increasing the depth of field of each eye through subtle changes in the optics of the corneal spherical aberration. The increase in depth of field allows for the eyes to be corrected in such a way that the dominant eye is set for distance and intermediate vision while the non-dominant eye sees best in the intermediate to near range. Because of the similarity in the visual performance of each eye in the intermediate range the brain is able to fuse the images between the eyes rendering a binocular visual environment. This is in contradiction to traditional monovision where the image disparity between the eyes is too high for image fusion by the brain and instead the brain needs to apply suppression of the blurred eye in order to perceive a clear visual field. In Laser Blended Vision, the eyes are effectively working together to allow good vision at near, intermediate and far, without the use of glasses.  The effects of Laser Blended Vision tend to last between 5 and 10 years but can be further adjusted by enhancement procedures.

text: Primarily the treatment is for condition called

text: presbyopia

text: . Laser Blended Vision can be achieved through laser eye surgery, usually performed as

text: LASIK

text: , although surface laser eye surgery

text: PRK

text: or

text: LASEK

text: can be used to produce the effect. Laser Blended Vision works by increasing the depth of field of each eye through subtle changes in the optics of the corneal

text: spherical aberration

text: . The increase in depth of field allows for the eyes to be corrected in such a way that the dominant eye is set for distance and intermediate vision while the non-dominant eye sees best in the intermediate to near range. Because of the similarity in the visual performance of each eye in the intermediate range the brain is able to fuse the images between the eyes rendering a binocular visual environment. This is in contradiction to traditional

text: monovision

text: where the image disparity between the eyes is too high for image fusion by the brain and instead the brain needs to apply suppression of the blurred eye in order to perceive a clear visual field. In Laser Blended Vision, the eyes are effectively working together to allow good vision at near, intermediate and far, without the use of glasses.  The effects of Laser Blended Vision tend to last between 5 and 10 years but can be further adjusted by enhancement procedures.

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answer: No

answer: No

answer: Yes

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text: Vision Express controls about 11% of the market for spectacles and contact lenses.

text: Vision Express controls about 11% of the market for

text: spectacles

text: and

text: contact lenses

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answer: No

answer: No

answer: Yes

answer: No

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text: Corrective lenses can be fitted to allow normal vision for people with focusing defects, or contact lenses may be worn inside the mask.

text: Corrective lenses can be fitted to allow normal vision for people with focusing defects, or contact lenses may be worn inside the mask.

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answers: focusing defects

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: In particle physics the little hierarchy problem in the Minimal Supersymmetric Standard Model (MSSM) is a refinement of the hierarchy problem. According to quantum field theory, the mass of the Higgs boson must be rather light for the electroweak theory to work. However, the loop corrections to the mass are naturally much greater; this is known as the hierarchy problem. New physical effects such as supersymmetry may in principle reduce the size of the loop corrections, making the theory natural. However, it is known from experiments that new physics such as superpartners does not occur at very low energy scales, so even if these new particles reduce the loop corrections, they do not reduce them enough to make the renormalized Higgs mass completely natural. The expected value of the Higgs mass is about 10 percent of the size of the loop corrections which shows that a certain "little" amount of fine-tuning seems necessary.

text: In

text: particle physics

text: the little hierarchy problem in the

text: Minimal Supersymmetric Standard Model

text: (MSSM) is a refinement of the

text: hierarchy problem

text: . According to

text: quantum field theory

text: , the mass of the

text: Higgs boson

text: must be rather light for the

text: electroweak theory

text: to work. However, the loop corrections to the mass are naturally much greater; this is known as the hierarchy problem. New physical effects such as

text: supersymmetry

text: may in principle reduce the size of the loop corrections, making the theory natural. However, it is known from experiments that new physics such as

text: superpartner

text: s does not occur at very low energy scales, so even if these new particles reduce the loop corrections, they do not reduce them enough to make the renormalized Higgs mass completely natural. The expected value of the Higgs mass is about 10 percent of the size of the loop corrections which shows that a certain "little" amount of

text: fine-tuning

text: seems necessary.

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answers: This is known as the hierarchy problem

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answers: The expected value of the Higgs mass

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answers: naturally much greater

answer: No

answer: No

answer: No

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text: W. Morgan Sheppard plays Captain Archibald Witwicky, Sam's great-great grandfather. Archibald Witwicky was a Dutch/English sea captain leading an exploration of the Arctic in 1897 when a crew member found something beneath the ice. They started digging and discovered the frozen Megatron. Archibald then accidentally activated Megatron's inertial navigation system which led to a sudden power surge, and died. Unbeknownst to him, the discharge etched a digital map to the AllSpark onto the lenses of his glasses. Blinded and forever marked by his vision, Archibald was committed to a mental institution for life, constantly ranting about visions of the future. A few of his personal items were given to his family, including the pair of glasses. These were passed down over time and eventually given to his great-great-grandson Sam.

text: W. Morgan Sheppard

text: plays Captain Archibald Witwicky, Sam's great-great grandfather. Archibald Witwicky was a

text: Dutch

text: English

text: sea captain

text: leading an exploration of the

text: Arctic

text: in 1897 when a crew member found something beneath the ice. They started digging and discovered the frozen Megatron. Archibald then accidentally activated Megatron's

text: inertial navigation system

text: which led to a sudden power surge, and died. Unbeknownst to him, the discharge etched a digital map to the

text: AllSpark

text: onto the lenses of his

text: glasses

text: . Blinded and forever marked by his vision, Archibald was committed to a

text: mental institution

text: for life, constantly ranting about visions of the future. A few of his personal items were given to his family, including the pair of glasses. These were passed down over time and eventually given to his great-great-grandson Sam.

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answer: No

answer: Yes

answer: No

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text: Intraocular lens (IOL) is a lens implanted in the eye used to treat cataracts or myopia. The most common type of IOL is the pseudophakic IOL. These are implanted during cataract surgery, after the cloudy crystalline lens (otherwise known as a cataract) has been removed. The pseudophakic IOL replaces the original crystalline lens, and provides the light focusing function originally undertaken by the crystalline lens. The second type of IOL, more commonly known as a phakic intraocular lens (PIOL), is a lens which is placed over the existing natural lens, and is used in refractive surgery to change the eye's optical power as a treatment for myopia, or nearsightedness. IOLs usually consist of a small plastic lens with plastic side struts, called haptics, to hold the lens in place within the capsular bag inside the eye. IOLs were conventionally made of an inflexible material (PMMA), although this has largely been superseded by the use of flexible materials. Most IOLs fitted today are fixed monofocal lenses matched to distance vision. However, other types are available, such as multifocal IOLs which provide the patient with multiple-focused vision at far and reading distance, and adaptive IOLs which provide the patient with limited visual accommodation.

text: Intraocular lens (IOL) is a

text: lens

text: implanted in the

text: eye

text: used to treat

text: cataracts

text: or

text: myopia

text: . The most common type of IOL is the pseudophakic IOL. These are implanted during cataract surgery, after the cloudy

text: crystalline lens

text: (otherwise known as a cataract) has been removed. The pseudophakic IOL replaces the original crystalline lens, and provides the light focusing function originally undertaken by the crystalline lens. The second type of IOL, more commonly known as a

text: phakic intraocular lens (PIOL)

text: , is a lens which is placed over the existing natural lens, and is used in

text: refractive surgery

text: to change the eye's

text: optical power

text: as a treatment for myopia, or

text: nearsightedness

text: . IOLs usually consist of a small plastic lens with plastic side struts, called haptics, to hold the lens in place within the capsular bag inside the eye. IOLs were conventionally made of an inflexible material (

text: PMMA

text: ), although this has largely been superseded by the use of flexible materials. Most IOLs fitted today are fixed monofocal lenses matched to distance vision. However, other types are available, such as multifocal IOLs which provide the patient with multiple-focused vision at far and reading distance, and adaptive IOLs which provide the patient with limited visual accommodation.

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answer: Yes

answer: Yes

answer: Yes

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answer: 1

text: Sclerals may also be used in people with eyes that are too sensitive for other smaller corneal-type lenses, but require a more rigid lens for vision correction conditions such as astigmatism.

text: Sclerals may also be used in people with eyes that are too sensitive for other smaller corneal-type lenses, but require a more rigid lens for vision correction conditions such as astigmatism.

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answers: astigmatism

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: smaller

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: Yes

answer: 1

text: This same property is achieved in camera lenses that combine mirrors with lenses. These designs,called catadioptric, 'reflex', or 'mirror' lenses,have a curved mirror as the primary objective with some form of negative lens in front of the mirror to correct optical aberrations. They also use a curved secondary mirror to relay the image that extends the light cone the same way the negative lens telephoto group does. The mirrors also fold the light path. This makes them much shorter, lighter, and cheaper than an all refractive lens, but at the cost of some optical compromises due to aberrations caused by the central obstruction from the secondary mirror.

text: This same property is achieved in camera lenses that combine mirrors with lenses. These designs,called

text: catadioptric, 'reflex', or 'mirror' lenses

text: ,have a

text: curved mirror

text: as the primary objective with some form of negative lens in front of the mirror to correct

text: optical aberration

text: s. They also use a curved

text: secondary mirror

text: to relay the image that extends the light cone the same way the negative lens telephoto group does. The mirrors also fold the light path. This makes them much shorter, lighter, and cheaper than an all refractive lens, but at the cost of some optical compromises due to aberrations caused by the central obstruction from the secondary mirror.

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answers: farsightedness

answers: NDQ_018818

answers: negative lens telephoto group

answers: NDQ_018819

answers: aberrations

answers: NDQ_018820

answers: central obstruction

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: In all types of surgery, the cataractous lens is removed and replaced with an artificial lens, known as an intraocular lens, which stays in the eye permanently. Intraocular lenses are usually monofocal, correcting for either distance or near vision. Multifocal lenses may be implanted to improve near and distance vision simultaneously, but these lenses may increase the chance of unsatisfactory vision.

text: In all types of surgery, the cataractous lens is removed and replaced with an artificial lens, known as an

text: intraocular lens

text: , which stays in the eye permanently. Intraocular lenses are usually monofocal, correcting for either distance or near vision. Multifocal lenses may be implanted to improve near and distance vision simultaneously, but these lenses may increase the chance of unsatisfactory vision.

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answers: monofocal

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answers: near

answers: NDQ_018819

answers: monofocal

answers: NDQ_018820

answers: unsatisfactory

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: Like other lenses for vision correction, aspheric lenses can be categorized as convex or concave.

text: Like other

text: lenses for vision correction

text: , aspheric lenses can be categorized as convex or concave.

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answers: 0

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answers: 0

answers: NDQ_018817

answers: 0

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answers: 0

answers: NDQ_018819

answers: 0

answers: NDQ_018820

answers: 0

answers: NDQ_018817

answers: convex

answers: NDQ_018818

answers: convex

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: concave

answer: No

answer: No

answer: Yes

answer: No

answer: Yes

answer: 1

text: In some elderly people, senses vital to safe driving, such as vision and hearing, decrease to the point that driving safety is compromised. Those whose vision is impaired may continue to be able to drive safely during daylight, but may have difficulty driving at night. In some persons, corrective lenses may improve the ability of the individual to safely operate a motor vehicle.

text: In some elderly people, senses vital to safe driving, such as

text: vision

text: and

text: hearing

text: , decrease to the point that driving safety is compromised. Those whose vision is impaired may continue to be able to drive safely during daylight, but may have difficulty driving at night. In some persons,

text: corrective lens

text: es may improve the ability of the individual to safely operate a motor vehicle.

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answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: 1

text: In addition to sharing and explaining their visions, fortune-tellers can also act like counselors by discussing and offering advice about their clients' problems. They want their clients to exercise their own willpower.

text: In addition to sharing and explaining their visions, fortune-tellers can also act like counselors by discussing and offering advice about their clients' problems. They want their clients to exercise their own willpower.

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answers: squished

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Eyeglass lenses are commonly made from plastic, including CR-39 and polycarbonate. These materials reduce the danger of breakage and weigh less than glass lenses. Some plastics also have more advantageous optical properties than glass, such as better transmission of visible light and greater absorption of ultraviolet light. Some plastics have a greater index of refraction than most types of glass; this is useful in the making of corrective lenses shaped to correct various vision abnormalities such as myopia, allowing thinner lenses for a given prescription.

text: Eyeglass lenses are commonly made from

text: plastic

text: , including

text: and

text: polycarbonate

text: . These materials reduce the danger of breakage and weigh less than glass lenses. Some plastics also have more advantageous optical properties than glass, such as better transmission of

text: visible light

text: and greater absorption of

text: ultraviolet light

text: . Some plastics have a greater

text: index of refraction

text: than most types of glass; this is useful in the making of corrective lenses shaped to correct various

text: vision abnormalities

text: such as

text: myopia

text: , allowing thinner lenses for a given

text: prescription

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answers: NDQ_018820

answers: thinner

answer: Yes

answer: Yes

answer: No

answer: Yes

answer: No

answer: 1

text: Lubricating tear ointments can be used during the day, but they generally are used at bedtime due to poor vision after application. They contain white petrolatum, mineral oil, and similar lubricants. They serve as a lubricant and an emollient. Application requires pulling down the eyelid and applying a small amount (0.25 in) inside. Depending on the severity of the condition, it may be applied from every hour to just at bedtime. It should never be used with contact lenses. Specially designed glasses that form a moisture chamber around the eye may be used to create additional humidity.

text: Lubricating tear ointments can be used during the day, but they generally are used at bedtime due to poor vision after application. They contain

text: white petrolatum

text: mineral oil

text: , and similar lubricants. They serve as a lubricant and an

text: emollient

text: . Application requires pulling down the eyelid and applying a small amount (0.25 in) inside. Depending on the severity of the condition, it may be applied from every hour to just at bedtime. It should never be used with contact lenses. Specially designed glasses that form a moisture chamber around the eye may be used to create additional humidity.

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answers: Lubricating tear ointments

answers: NDQ_018818

answers: in myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: out of alignment

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Penderel Moon simply attributes the League's rise to power to the alluring and irresistible appeal of the Pakistan cry to the Muslim masses. Peter Hardy's explained that the Muslim League gained its electoral success in the Punjab by making a religious appeal over the heads of the professional politicians. Pakistani historians have explained the League's success in the Punjab, as elsewhere in the subcontinent, solely in terms of the Two Nation Theory. Whatever the historians may suggest, one thing is clear that League's success was due to the political vision, farsightedness of Muhammad Ali Jinnah. He was a man of high personal integrity and intelligence who became a Grandmaster of the game by his clever, and clever calculations.

text: Penderel Moon simply attributes the League's rise to power to the alluring and irresistible appeal of the Pakistan cry to the Muslim masses. Peter Hardy's explained that the Muslim League gained its electoral success in the Punjab by making a religious appeal over the heads of the professional politicians. Pakistani historians have explained the League's success in the Punjab, as elsewhere in the subcontinent, solely in terms of the Two Nation Theory. Whatever the historians may suggest, one thing is clear that League's success was due to the political vision, farsightedness of Muhammad Ali Jinnah. He was a man of high personal integrity and intelligence who became a Grandmaster of the game by his clever, and clever calculations.

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answers: farsightedness

answers: NDQ_018818

answers: Penderel Moon

answers: NDQ_018819

answers: farsightedness

answers: NDQ_018820

answers: over the heads

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Every corrective lens prescription includes a spherical correction in diopters.  Convergent powers are positive (e.g., +4.00 D) and condense light to correct for farsightedness (hyperopia) or allow the patient to read more comfortably (see presbyopia and binocular vision disorders).  Divergent powers are negative (e.g., −3.75 D) and spread out light to correct for nearsightedness (myopia).  If neither convergence nor divergence is required in the prescription, "plano" is used to denote a refractive power of zero.

text: Every corrective lens prescription includes a spherical correction in

text: diopter

text: s.  Convergent powers are positive (e.g., +4.00 D) and condense light to correct for farsightedness (

text: hyperopia

text: ) or allow the patient to read more comfortably (see

text: presbyopia

text: and

text: binocular vision disorders

text: ).  Divergent powers are negative (e.g., −3.75 D) and spread out light to correct for nearsightedness (

text: myopia

text: ).  If neither convergence nor divergence is required in the prescription, "plano" is used to denote a refractive power of zero.

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answers: NDQ_018819

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answers: NDQ_018820

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answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: 1

text: Main component of the SLS is the 2.4 GeV electron storage ring of 288 m circumference:The ring is formed by 36 dipole magnets of 1.4 tesla magnetic field, combined in 12 groups of three (triple bend achromat, TBA) for achromatic deflection of the electron beam. 12 straight sections between the TBAs of different lengths (3×11.5 m, 3×7 m, 6×4 m) accommodate the undulator magnets to generate ultraviolet and X-ray light of extreme brightness. 3 of the dipoles have an increased center field of 3 tesla to produce hard X-rays.A total of 177 quadrupole magnets (magnetic lenses) focuses the beam to provide a beam emittance of 5.5 nm rad.120 sextupole magnets correct the chromatic focusing errors of the quadrupoles. 73 horizontal and vertical beam steerers are used to continuously correct the position of the electron beam. Finally 24 skew quadrupole magnets are adjusted to correct any torsion of the beam and to minimize the vertical emittance: a world record low value of 3 pm rad has been achieved in 2008.

text: Main component of the SLS is the 2.4

text: GeV

text: electron

text: storage ring

text: of 288 m circumference:The ring is formed by 36

text: dipole magnet

text: s of 1.4

text: tesla

text: magnetic field, combined in 12 groups of three (triple bend achromat, TBA) for achromatic deflection of the electron beam. 12 straight sections between the TBAs of different lengths (3×11.5 m, 3×7 m, 6×4 m) accommodate the

text: undulator

text: magnets to generate ultraviolet and X-ray light of extreme

text: brightness

text: . 3 of the dipoles have an increased center field of 3

text: tesla

text: to produce hard X-rays.A total of 177

text: quadrupole magnet

text: s (magnetic lenses) focuses the beam to provide a

text: beam emittance

text: of 5.5 nm rad.120

text: sextupole magnet

text: s correct the chromatic focusing errors of the quadrupoles. 73 horizontal and vertical beam steerers are used to continuously correct the position of the electron beam. Finally 24 skew quadrupole magnets are adjusted to correct any torsion of the beam and to minimize the vertical emittance: a world record low value of 3 pm rad has been achieved in 2008.

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answers: Myopia is also called farsightedness

answers: NDQ_018818

answers: magnetic lenses

answers: NDQ_018819

answers: Hyperopia is also called nearsightedness

answers: NDQ_018820

answers: achromatic

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 0

text: Unlike with bifocals, near-vision correction is achieved over the entire field of view, in any direction.  Distance vision corrections are made by re-adjusting the lens for distance, instead of by tilting and/or rotating the head to view object through the best part of the lens for the distance.  Adjustable focus lenses, like single-focus lenses, also reduce image-jump and spatial distortion in the field of view associated with traditional multi-focal lenses.  Additionally, the ideal near-vision correction can be achieved with precision, because the variable lenses emulate the focusing action of the youthful (non-presbyopic) eye.

text: Unlike with bifocals, near-vision correction is achieved over the entire

text: field of view

text: , in any direction.  Distance vision corrections are made by re-adjusting the lens for distance, instead of by tilting and/or rotating the head to view object through the best part of the lens for the distance.  Adjustable focus lenses, like single-focus lenses, also reduce image-jump and spatial distortion in the field of view associated with traditional multi-focal lenses.  Additionally, the ideal near-vision correction can be achieved with precision, because the variable lenses emulate the focusing action of the youthful (non-presbyopic) eye.

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answers: 0

answers: NDQ_018817

answers: non-presbyopic

answers: NDQ_018818

answers: the best part of the lens

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: presbyopic

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: When the eye position is fully corrected (for example after surgical alignment of the eyes) or when the patient is provided with the best achievable prism correction, the patient does not experience binocular fusion and, instead, sees a double image that is very close to the fixation image and is perceived as "dancing around" it. The eyes display an unsteady misalignment.

text: When the eye position is fully corrected (for example after surgical alignment of the eyes) or when the patient is provided with the best achievable prism correction, the patient does not experience binocular fusion and, instead, sees a double image that is very close to the fixation image and is perceived as "dancing around" it. The eyes display an unsteady misalignment.

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answers: myopia

answers: NDQ_018818

answers: fixation image

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: unsteady

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Depth perception, focus, tracking and other aspects of vision continue to develop throughout early and middle childhood. From recent studies in the United States and Australia there is some evidence that the amount of time school aged children spend outdoors, in natural light, may have some impact on whether they develop myopia. The condition tends to get somewhat worse through childhood and adolescence, but stabilizes in adulthood. More prominent myopia (nearsightedness) and astigmatism are thought to be inherited. Children with this condition may need to wear glasses.

text: Depth perception

text: , focus, tracking and other aspects of vision continue to develop throughout early and middle childhood. From recent studies in the United States and Australia there is some evidence that the amount of time school aged children spend outdoors, in natural light, may have some impact on whether they develop

text: myopia

text: . The condition tends to get somewhat worse through childhood and adolescence, but stabilizes in adulthood. More prominent myopia (nearsightedness) and astigmatism are thought to be inherited. Children with this condition may need to wear glasses.

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answer: Yes

answer: Yes

answer: Yes

answer: Yes

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answer: 1

text: Additionally, he obtained the right to sell Ford products in the then existing British Empire, exclusive of the British Isles.  This farsightedness on the part of McGregor has resulted in Ford of Canada having wholly owned subsidiaries in South Africa, New Zealand and Australia.

text: Additionally, he obtained the right to sell Ford products in the then existing British Empire, exclusive of the British Isles.  This farsightedness on the part of McGregor has resulted in Ford of Canada having wholly owned subsidiaries in South Africa, New Zealand and Australia.

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answer: Yes

answer: No

answer: No

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answer: 1

text: The basic problem is of forward references. The correct interpretation of a symbol at some point in the source file may be dependent on the presence or not of other symbols further on in the source file and until they are encountered, correct code for the current symbol cannot be produced. This is the problem of context dependence, and the span can be anywhere from adjacent symbols to arbitrarily large amounts of source text.

text: The basic problem is of forward references. The correct interpretation of a symbol at some point in the source file may be dependent on the presence or not of other symbols further on in the source file and until they are encountered, correct code for the current symbol cannot be produced. This is the problem of context dependence, and the span can be anywhere from adjacent symbols to arbitrarily large amounts of source text.

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answers: farsightedness

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answers: on the presence or not

answers: NDQ_018819

answers: hyperopia is also called nearsightedness

answers: NDQ_018820

answers: nearsighted

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Cataract surgery may be performed to correct vision problems in both eyes, and in these cases, patients are usually advised to consider monovision. This procedure involves inserting in one eye an intraocular lens that provides near vision and in the other eye an IOL that provides distance vision. Although most patients can adjust to having implanted monofocal lenses in both eyes, some cannot and may experience blurred vision at both near and far. IOLs that emphasize distance vision may be mixed with IOLs that emphasize intermediate vision in order to achieve a type of modified monovision. Bausch and Lomb developed in 2004 the first aspheric IOLs which provide better contrast sensitivity by having their periphery flatter than the middle of the lens. However, some cataract surgeons have debated the benefits of aspheric IOLs, because the contrast sensitivity benefit may not last in older patients.

text: Cataract surgery may be performed to correct vision problems in both eyes, and in these cases, patients are usually advised to consider monovision. This procedure involves inserting in one eye an intraocular lens that provides near vision and in the other eye an IOL that provides distance vision. Although most patients can adjust to having implanted monofocal lenses in both eyes, some cannot and may experience

text: blurred vision

text: at both near and far. IOLs that emphasize distance vision may be mixed with IOLs that emphasize intermediate vision in order to achieve a type of modified monovision.

text: Bausch and Lomb

text: developed in 2004 the first aspheric IOLs which provide better contrast sensitivity by having their periphery flatter than the middle of the lens. However, some cataract surgeons have debated the benefits of aspheric IOLs, because the contrast sensitivity benefit may not last in older patients.

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answers: monovision

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answers: near

answers: NDQ_018819

answers: monovision

answers: NDQ_018820

answers: flatter

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: 1

text: Russian writer Yakov I. Perelman pointed out in Physics Can Be Fun (1913) that from a scientific point of view, a man made invisible by Griffin's method should have been blind, since a human eye works by absorbing incoming light, not letting it through completely. Wells seems to show some awareness of this problem in Chapter 20, where the eyes of an otherwise invisible cat retain visible retinas. Nonetheless, this would be insufficient, since the retina would be flooded with light (from all directions) that ordinarily is blocked by the opaque sclera of the eyeball. Also, any image would be badly blurred if the eye had an invisible cornea and lens.

text: Russian writer

text: Yakov I. Perelman

text: pointed out in Physics Can Be Fun (1913) that from a scientific point of view, a man made invisible by Griffin's method should have been blind, since a

text: human eye

text: works by absorbing incoming light, not letting it through completely. Wells seems to show some awareness of this problem in Chapter 20, where the eyes of an otherwise invisible cat retain visible retinas. Nonetheless, this would be insufficient, since the retina would be flooded with light (from all directions) that ordinarily is blocked by the opaque

text: sclera

text: of the eyeball. Also, any image would be badly blurred if the eye had an invisible

text: cornea

text: and

text: lens

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text: Creating and implementing vision statements presents challenges to organizations.  They can be challenging to write because they must balance being forward-looking and describing an ideal state without becoming so idealistic that the vision is unattainable. Vision statements can be an employee dissatisfier when staff feel the company's vision is filled with business buzzwords unrelated to the company's services or when the vision does not match day-to-day company policy; for example, a vision statement that includes root cause problem solving while managers are rewarded for fixing problems quickly rather than resolving systemic issues. A vision statement may need to be paired with company initiatives to communicate and reinforce the vision, ensure processes align with the vision, and empower and incentivize employees to take actions that support the company vision.

text: Creating and implementing vision statements presents challenges to organizations.  They can be challenging to write because they must balance being forward-looking and describing an ideal state without becoming so idealistic that the vision is unattainable. Vision statements can be an employee dissatisfier when staff feel the company's vision is filled with business

text: buzzword

text: s unrelated to the company's services or when the vision does not match day-to-day company policy; for example, a vision statement that includes root cause problem solving while managers are rewarded for fixing problems quickly rather than resolving systemic issues. A vision statement may need to be paired with company initiatives to communicate and reinforce the vision, ensure processes align with the vision, and empower and incentivize employees to take actions that support the company vision.

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answer: Yes

answer: Yes

answer: No

answer: No

answer: No

answer: 1

text: The German oculist Burchard Mauchart provided an early description in a 1748 doctoral dissertation of a case of keratoconus, which he called staphyloma diaphanum. However, it was not until 1854 that British physician John Nottingham (1801 – 1856) clearly described keratoconus and distinguished it from other ectasias of the cornea. Nottingham reported the cases of "conical cornea" that had come to his attention, and described several classic features of the disease, including polyopia, weakness of the cornea, and difficulty matching corrective lenses to the patient's vision. In 1859, British surgeon William Bowman used an ophthalmoscope (recently invented by Hermann von Helmholtz) to diagnose keratoconus, and described how to angle the instrument's mirror so as to best see the conical shape of the cornea. Bowman also attempted to restore vision by pulling on the iris with a fine hook inserted through the cornea and stretching the pupil into a vertical slit, like that of a cat. He reported that he had had a measure of success with the technique, restoring vision to an 18-year-old woman who had previously been unable to count fingers at a distance of 8 inches (20 cm).

text: The German

text: oculist

text: Burchard Mauchart

text: provided an early description in a 1748 doctoral dissertation of a case of keratoconus, which he called staphyloma diaphanum. However, it was not until 1854 that British physician John Nottingham (1801 – 1856) clearly described keratoconus and distinguished it from other

text: ectasia

text: s of the cornea. Nottingham reported the cases of "conical cornea" that had come to his attention, and described several classic features of the disease, including

text: polyopia

text: , weakness of the cornea, and difficulty matching corrective lenses to the patient's vision. In 1859, British surgeon

text: William Bowman

text: used an

text: ophthalmoscope

text: (recently invented by

text: Hermann von Helmholtz

text: ) to diagnose keratoconus, and described how to angle the instrument's mirror so as to best see the conical shape of the cornea. Bowman also attempted to restore vision by pulling on the

text: iris

text: with a fine hook inserted through the cornea and stretching the

text: pupil

text: into a vertical slit, like that of a cat. He reported that he had had a measure of success with the technique, restoring vision to an 18-year-old woman who had previously been unable to count fingers at a distance of 8 inches (20 cm).

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answer: Yes

answer: Yes

answer: No

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answer: No

answer: 1

text: In 2001, the band started writing and recording the new album, titled "Send Me An Angel", that was released in January 2002. At the end of the same year, Olaf decided to leave Labyrinth, to focus just on Vision and also deciding to stop any rumours from some magazine, pretending to consider Vision as nothing but a "side project". For the same reason Andrew and Mat split from the band and were replaced by Oleg Smirnoff at keyboards (ex Eldritch) and Matteo Amoroso at drums (ex Athena). In 2003 the band started the songwriting for the third album, when Fabio started having some problem regarding the co-existence of his career and Vision Divine related duties. After a few months, they mutually agreed to split. They then proceeded to add new singer Michele Luppi, a vocalist with a previous experience in live performances. With this new line-up they completed the final songs for the album that was to be titled "Stream of Consciousness". The album was released in April 2004.

text: In 2001, the band started writing and recording the new album, titled "Send Me An Angel", that was released in January 2002. At the end of the same year, Olaf decided to leave Labyrinth, to focus just on Vision and also deciding to stop any rumours from some magazine, pretending to consider Vision as nothing but a "side project". For the same reason Andrew and Mat split from the band and were replaced by Oleg Smirnoff at keyboards (ex

text: Eldritch

text: ) and Matteo Amoroso at drums (ex

text: Athena

text: ). In 2003 the band started the songwriting for the third album, when Fabio started having some problem regarding the co-existence of his career and Vision Divine related duties. After a few months, they mutually agreed to split. They then proceeded to add new singer Michele Luppi, a vocalist with a previous experience in live performances. With this new line-up they completed the final songs for the album that was to be titled "

text: Stream of Consciousness

text: ". The album was released in April 2004.

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answers: strabismus

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: In the United States, a 20/20 visual acuity is considered normal. This means that the chart is normally placed at 20 feet distance from the person who is being tested. 20/20 visual acuity is considered normal vision for individuals, but not perfect, as some individuals, although rare, can see at 20 feet what others can see at 10. While vision can be poorer than 20/200, a person with the best-corrected vision (once wearing corrective lenses) of 20/200 is normally considered legally blind.  Individuals with 20/200 vision are normally able to read only the first letter on the chart. Usually the 20/20 line of letters is fourth from the bottom, with 20/15, 20/10 and 20/5 below that. Not many people have 20/10 or better visual acuity, but many animals do, especially birds of prey, which have been estimated to have an acuity of 20/5 or even better. In the United States, individuals who want to get their driver's licenses without corrective lens restrictions must have at least 20/40 visual acuity.

text: In the

text: United States

text: , a 20/20 visual acuity is considered normal. This means that the chart is normally placed at 20 feet distance from the person who is being tested. 20/20 visual acuity is considered normal vision for individuals, but not perfect, as some individuals, although rare, can see at 20 feet what others can see at 10. While vision can be poorer than 20/200, a person with the best-corrected vision (once wearing corrective lenses) of 20/200 is normally considered legally

text: blind

text: .  Individuals with 20/200 vision are normally able to read only the first letter on the chart. Usually the 20/20 line of letters is fourth from the bottom, with 20/15, 20/10 and 20/5 below that. Not many people have 20/10 or better visual acuity, but many animals do, especially

text: birds of prey

text: , which have been estimated to have an acuity of 20/5 or even better. In the United States, individuals who want to get their driver's licenses without corrective lens restrictions must have at least 20/40 visual acuity.

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answers: legally blind

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answers: in myopia

answers: NDQ_018819

answers: 20/20 visual acuity

answers: NDQ_018820

answers: dilated

answer: Yes

answer: Yes

answer: No

answer: No

answer: No

answer: 1

text: Initially the condition can typically be corrected with glasses or soft contact lenses. As the disease worsens special contact lenses may be required. In most people the disease stabilizes after a few years without severe vision problems. In a small number of people scarring of the cornea occurs and a corneal transplantation is required.

text: Initially the condition can typically be corrected with

text: glasses

text: or

text: soft contact lenses

text: . As the disease worsens special contact lenses may be required. In most people the disease stabilizes after a few years without severe vision problems. In a small number of people scarring of the cornea occurs and a

text: corneal transplantation

text: is required.

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answers: myopia

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answers: on the cornea

answers: NDQ_018819

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answers: NDQ_018820

answers: scarred

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: Jasmine Khan (Tabu) is the next door neighbour of Chandrashekar (Nedumudi Venu), a retired judge with a haunted past. The two become friends. Jasmine, a computer engineer, has to wear high power contact lenses because of her vision problems. She meets Vijay, a news reporter and the executive director of True Vision.

text: Jasmine Khan (

text: Tabu

text: ) is the next door neighbour of Chandrashekar (

text: Nedumudi Venu

text: ), a retired judge with a haunted past. The two become friends. Jasmine, a computer engineer, has to wear high power

text: contact lens

text: es because of her vision problems. She meets Vijay, a news reporter and the executive director of True Vision.

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answers: high power contact lenses

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answers: high power contact lenses

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answers: squished

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: 1

text: In 2005, a computer-animated short film of the nanofactory concept was produced by John Burch, in collaboration with Drexler. Such visions have been the subject of much debate, on several intellectual levels. No one has discovered an insurmountable problem with the underlying theories and no one has proved that the theories can be translated into practice. However, the debate continues, with some of it being summarized in the molecular nanotechnology article.

text: In 2005, a computer-animated short film of the nanofactory concept was produced by John Burch, in collaboration with Drexler. Such visions have been the subject of much debate, on several intellectual levels. No one has discovered an insurmountable problem with the underlying theories and no one has proved that the theories can be translated into practice. However, the debate continues, with some of it being summarized in the

text: molecular nanotechnology

text: article.

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answers: farsightedness

answers: NDQ_018818

answers: myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: insurmountable

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Corrective eye surgery such as LASIK and PRK aims to correct anemmetropic vision. This is accomplished by ensuring the curvature of the cornea, the shape of the lens and their distances from each other and the retina are in harmony. By shaping the cornea, emmetropic vision can be achieved without corrective lenses. The correction for only emmetropic vision is often why patients are still advised to wear glasses to read as they age due to presbyopia.

text: Corrective eye surgery such as

text: LASIK

text: and

text: PRK

text: aims to correct anemmetropic vision. This is accomplished by ensuring the curvature of the cornea, the shape of the lens and their distances from each other and the retina are in harmony. By shaping the cornea, emmetropic vision can be achieved without corrective lenses. The correction for only emmetropic vision is often why patients are still advised to wear glasses to read as they age due to

text: presbyopia

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answers: presbyopia

answers: NDQ_018818

answers: on the retina

answers: NDQ_018819

answers: presbyopia

answers: NDQ_018820

answers: curvature

answer: No

answer: No

answer: Yes

answer: No

answer: No

answer: 1

text: The Paillard-Bolex H-16 usually has a turret for three C-mount lenses. Often, the camera was provided with a 16mm Switar or Yvar, a 25mm Switar or Yvar and the third lens was often a 75mm Yvar or 50mm Switar. It should be noted that only lenses with the designation "RX" in 50 mm or less can be used on the RX models. RX corrected lenses were also manufactured by Schneider, Berthiot, Angénieux, and Rodenstock. The single lens port H-16 M(arine) was made in conjunction with the first underwater housing. A second, later marine housing was made for the electric drive models.

text: The Paillard-Bolex H-16 usually has a turret for three C-mount lenses. Often, the camera was provided with a 16mm Switar or Yvar, a 25mm Switar or Yvar and the third lens was often a 75mm Yvar or 50mm Switar. It should be noted that only lenses with the designation "RX" in 50 mm or less can be used on the RX models. RX corrected lenses were also manufactured by Schneider, Berthiot, Angénieux, and Rodenstock. The single lens port H-16 M(arine) was made in conjunction with the first underwater housing. A second, later marine housing was made for the electric drive models.

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answer: Yes

answer: Yes

answer: No

answer: Yes

answer: No

answer: 1

text: Contact lenses can also be used to correct the focusing loss that comes along with presbyopia. Multifocal contact lenses can be used to correct vision for both the near and the far. Some people choose contact lenses to correct one eye for near and one eye for far with a method called monovision.

text: Contact lenses

text: can also be used to correct the focusing loss that comes along with presbyopia.

text: Multifocal contact lenses

text: can be used to correct vision for both the near and the far. Some people choose contact lenses to correct one eye for near and one eye for far with a method called

text: monovision

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answers: near

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answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: The eye of oceanic dolphins is relatively small for its size, yet they do retain a good degree of eyesight. As well as this, the eyes of a dolphin are placed on the sides of its head, so their vision consists of two fields, rather than a binocular view like humans have. When dolphins surface, their lens and cornea correct the nearsightedness that results from the refraction of light; they contain both rod and cone cells, meaning they can see in both dim and bright light. Dolphins do, however, lack short wavelength sensitive visual pigments in their cone cells indicating a more limited capacity for color vision than most mammals. Most dolphins have slightly flattened eyeballs, enlarged pupils (which shrink as they surface to prevent damage), slightly flattened corneas and a  tapetum lucidum; these adaptations allow for large amounts of light to pass through the eye and, therefore, a very clear image of the surrounding area. They also have glands on the eyelids and outer corneal layer that act as protection for the cornea.

text: The eye of oceanic dolphins is relatively small for its size, yet they do retain a good degree of eyesight. As well as this, the eyes of a dolphin are placed on the sides of its head, so their vision consists of two fields, rather than a binocular view like humans have. When dolphins surface, their lens and cornea correct the nearsightedness that results from the refraction of light; they contain both

text: rod

text: and

text: cone

text: cells, meaning they can see in both dim and bright light. Dolphins do, however, lack short wavelength sensitive visual pigments in their cone cells indicating a more limited capacity for color vision than most mammals. Most dolphins have slightly flattened eyeballs, enlarged pupils (which shrink as they surface to prevent damage), slightly flattened corneas and a

text: tapetum lucidum

text: ; these adaptations allow for large amounts of light to pass through the eye and, therefore, a very clear image of the surrounding area. They also have glands on the eyelids and

text: outer corneal layer

text: that act as protection for the cornea.

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answers: flattened

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: The Nikon F-mount is one of only two SLR lens mounts (the other being the Pentax K-mount) which were not abandoned by their associated manufacturer upon the introduction of autofocus, but rather extended to meet new requirements related to metering, autofocus, and aperture control. The large variety of F-mount compatible lenses makes it the largest system of interchangeable flange-mount photographic lenses in history. Over 400 different Nikkor lenses are compatible with the system (others details can be found at the Nikkor The Thousand and One Nights site). The F-mount is also popular in scientific and industrial applications, most notably machine vision. The F-mount has been in production for over five decades, making it the only SLR lens mount which has been produced for over 50 years.

text: The Nikon F-mount is one of only two SLR lens mounts (the other being the

text: Pentax K-mount

text: ) which were not abandoned by their associated manufacturer upon the introduction of

text: autofocus

text: , but rather extended to meet new requirements related to

text: metering

text: autofocus

text: , and

text: aperture

text: control. The large variety of F-mount compatible lenses makes it the largest system of interchangeable flange-mount photographic lenses in history. Over 400 different

text: Nikkor

text: lenses are compatible with the system (others details can be found at the Nikkor The Thousand and One Nights site). The F-mount is also popular in scientific and industrial applications, most notably

text: machine vision

text: . The F-mount has been in production for over five decades, making it the only SLR lens mount which has been produced for over 50 years.

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answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Varilux is a brand name belonging to Essilor International, a producer of corrective lenses. The first version of the lens was invented by Bernard Maitenaz and released in 1959, and was the first modern progressive lens to correct presbyopia. The progressive lens is characterized by correcting near, intermediate and far vision.

text: Varilux is a brand name belonging to

text: Essilor International

text: , a producer of

text: corrective lens

text: es. The first version of the lens was invented by Bernard Maitenaz and released in 1959, and was the first modern

text: progressive lens

text: to correct

text: presbyopia

text: . The

text: progressive lens

text: is characterized by correcting near, intermediate and far vision.

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answer: Yes

answer: Yes

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text: Vision rehabilitation (often called vision rehab) is a term for a medical rehabilitation to improve vision or low vision. In other words, it is the process of restoring functional ability and improving quality of life and independence in an individual who has lost visual function through illness or injury. Most visual rehabilitation services are focused on low vision, which is a visual impairment that cannot be corrected by regular eyeglasses, contact lenses, medication, or surgery. Low vision interferes with the ability to perform everyday activities. Visual impairment is caused by factors including brain damage, vision loss, and others. Of the vision rehabilitation techniques available, most center on neurological and physical approaches.

text: Vision rehabilitation (often called vision rehab) is a term for a

text: medical rehabilitation

text: to improve vision or

text: low vision

text: . In other words, it is the process of restoring functional ability and improving quality of life and independence in an individual who has lost visual function through illness or injury. Most visual rehabilitation services are focused on low vision, which is a

text: visual impairment

text: that cannot be corrected by regular eyeglasses, contact lenses, medication, or surgery. Low vision interferes with the ability to perform everyday activities. Visual impairment is caused by factors including

text: brain damage

text: vision loss

text: , and others. Of the vision rehabilitation techniques available, most center on neurological and physical approaches.

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answer: No

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answer: No

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text: Radio Prague | Martin Barry: Prague needs vision now for problems in 20 years (May 14, 2016)

text: Radio Prague | Martin Barry: Prague needs vision now for problems in 20 years (May 14, 2016)

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answers: NDQ_018820

answers: squished

answer: No

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: In 1997, the FDA approved the technology for a more advanced outpatient procedure for laser vision correction, Laser in-situ keratomileusis (LASIK), to treat nearsightedness, also using an excimer laser.  Within one year of its FDA approval, PRK became less and less popular following the development of LASIK, a procedure that allowed patients to have their vision corrected without the need for extended recovery from surgery.

text: In 1997, the FDA approved the technology for a more advanced outpatient procedure for laser vision correction, Laser in-situ keratomileusis (LASIK), to treat nearsightedness, also using an excimer laser.  Within one year of its FDA approval, PRK became less and less popular following the development of LASIK, a procedure that allowed patients to have their vision corrected without the need for extended recovery from surgery.

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text: Her Majesty's Prison Service, Bermuda, was the uniformed service  tasked with managing the prisons within the British Overseas Territory of Bermuda. In 2002, the Government of Bermuda declared that there would no longer be HM Prisons in Bermuda, but Correctional Facilities, heralding a new vision of the function of those facilities. At the same time, HM Prison Service was renamed The Department of Corrections.

text: Her Majesty's Prison Service, Bermuda, was the uniformed service  tasked with managing the

text: prison

text: s within the

text: British Overseas Territory

text: of

text: Bermuda

text: . In 2002, the

text: Government of Bermuda

text: declared that there would no longer be HM Prisons in Bermuda, but Correctional Facilities, heralding a new vision of the function of those facilities. At the same time, HM Prison Service was renamed The Department of Corrections.

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text: The lights are designed and arranged to be visible from a distance (up to two kilometers on a clear day). For this they are equipped with lenses to focus light rays emitted by the bulb, which can be selected and reasonable power. That is why the lights do not seem very intense when viewed from the side while they light up sharply in normal line of vision i.e. in the direction of arrival of the train.

text: The lights are designed and arranged to be visible from a distance (up to two kilometers on a clear day). For this they are equipped with lenses to focus light rays emitted by the bulb, which can be selected and reasonable power. That is why the lights do not seem very intense when viewed from the side while they light up sharply in normal line of vision i.e. in the direction of arrival of the train.

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answer: No

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text: Botulinum toxin therapy of strabismus is a medical technique used sometimes in the management of strabismus, in which botulinum toxin is injected into selected extraocular muscles in order to reduce the misalignment of the eyes. The injection of the toxin to treat strabismus, reported upon in 1981, is considered to be the first ever use of botulinum toxin for therapeutic purposes. Today, the injection of botulinum toxin into the muscles that surround the eyes is one of the available options in the management of strabismus. Other options for strabismus management are vision therapy and occlusion therapy, corrective glasses (or contact lenses) and prism glasses, and strabismus surgery.

text: Botulinum toxin therapy of strabismus is a medical technique used sometimes in the

text: management of strabismus

text: , in which

text: botulinum toxin

text: is

text: injected

text: into selected

text: extraocular muscles

text: in order to reduce the misalignment of the eyes. The injection of the toxin to treat strabismus, reported upon in 1981, is considered to be the first ever use of botulinum toxin for therapeutic purposes. Today, the injection of botulinum toxin into the muscles that surround the eyes is one of the available options in the management of

text: strabismus

text: . Other options for strabismus management are

text: vision therapy

text: and

text: occlusion therapy

text: corrective glasses

text: (or

text: contact lens

text: es) and

text: prism

text: glasses, and

text: strabismus surgery

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answers: misalignment

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answers: hyperopia

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answers: misaligned

answer: Yes

answer: Yes

answer: No

answer: No

answer: No

answer: 1

text: Scleral lenses may be inserted into the eye directly from the fingers, from a hand held plunger, or from a stationary lighted plunger on a stand.  Prior to inserting the scleral, the lens is over-filled with a sterile saline or other prescribed solution mixture.  Some fluid is allowed to drip from the lens as it is inserted in order to ensure no bubbles become trapped under the lens after it is seated on the eye.  The lens can then be rotated to the correct orientation, often denoted by a mark at the "top" of the lens, with a finger.  A "left" scleral lens is often marked with two dots, and a "right" is marked with one dot.

text: Scleral lenses may be inserted into the eye directly from the fingers, from a hand held plunger, or from a stationary lighted plunger on a stand.  Prior to inserting the scleral, the lens is over-filled with a sterile saline or other prescribed solution mixture.  Some fluid is allowed to drip from the lens as it is inserted in order to ensure no bubbles become trapped under the lens after it is seated on the eye.  The lens can then be rotated to the correct orientation, often denoted by a mark at the "top" of the lens, with a finger.  A "left" scleral lens is often marked with two dots, and a "right" is marked with one dot.

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answers: at the "top" of the lens

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answers: hyperopia

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answers: right

answer: No

answer: No

answer: Yes

answer: No

answer: No

answer: 1

text: Since then, Bausch & Lomb has developed into a globally operating company which is one of the largest producers of contact lenses. Today, about 13,000 employees in 36 countries work for the firm. Total turnover for the year 2006 was estimated at 2.29 billion USD. The company's competitors in the international health-care services market are Johnson & Johnson, Alcon, Allergan, MSD-Chibret and Ciba Vision (Novartis).

text: Since then, Bausch & Lomb has developed into a globally operating company which is one of the largest producers of contact lenses. Today, about 13,000 employees in 36 countries work for the firm. Total turnover for the year 2006 was estimated at 2.29 billion USD. The company's competitors in the international health-care services market are

text: Johnson & Johnson

text: Alcon

text: Allergan

text: MSD-Chibret

text: and

text: Ciba Vision

text: (Novartis).

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answer: No

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: Optically corrected adapter to use Nikon AIS AI lenses on K-mount.

text: Optically corrected adapter to use Nikon AIS AI lenses on K-mount.

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answers: hyperopic

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: The cause is an imperfection in the eye: often when the eyeball is too short, or the lens cannot become round enough. It is a type of refractive error.

text: The cause is an imperfection in the eye: often when the eyeball is too short, or the

text: lens

text: cannot become round enough. It is a type of

text: refractive error

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text: The parameters specified on spectacle prescriptions vary but typically include the power to which each lens should be made in order to correct blurred vision due to refractive errors, including myopia, hyperopia, astigmatism, and presbyopia. It is typically determined using a phoropter and asking the patient which of two lenses is better,  or by computer automated refractor, or through the technique of retinoscopy. A dispensing optician will take a prescription written by an optometrist or ophthalmologist and order and/or assemble the frames and lenses to then be dispensed and sold to the patient.

text: The parameters specified on spectacle prescriptions vary but typically include the power to which each lens should be made in order to correct blurred

text: vision

text: due to

text: refractive errors

text: , including

text: myopia

text: hyperopia

text: astigmatism

text: , and

text: presbyopia

text: . It is typically determined using a

text: phoropter

text: and asking the patient which of two lenses is better,  or by

text: computer automated refractor

text: , or through the technique of

text: retinoscopy

text: . A

text: dispensing optician

text: will take a prescription written by an

text: optometrist

text: or

text: ophthalmologist

text: and order and/or assemble the frames and lenses to then be dispensed and sold to the patient.

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answer: Yes

answer: Yes

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text: Southern College of Optometry is a college of optometry in the United States. It is located in Memphis, Tennessee and is dedicated to the study of optometry, the field of medicine that includes not only the performance of refractive eye examinations and the fitting of necessary corrective lenses or vision therapy, but also the diagnosis and treatment of numerous ocular diseases. After completing a 4-year graduate program, students at SCO receive the degree of Doctor of Optometry (OD).

text: Southern College of Optometry is a college of

text: optometry

text: in the

text: United States

text: . It is located in

text: Memphis, Tennessee

text: and is dedicated to the study of optometry, the field of medicine that includes not only the performance of refractive

text: eye examination

text: s and the fitting of necessary

text: corrective lenses

text: or

text: vision therapy

text: , but also the diagnosis and treatment of numerous ocular diseases. After completing a 4-year graduate program, students at SCO receive the degree of Doctor of Optometry (OD).

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answer: Yes

answer: Yes

answer: Yes

answer: Yes

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answer: 1

text: Peter and Claire confront Nathan about Ted. With someone else having the ability to explode, Peter is hopeful that the explosion can be stopped. Nathan is doubtful, and points out that Peter's vision was of his own explosion. Peter responds that he had a vision of flying as well, despite the fact that it was Nathan who could fly - a fact that impresses Claire. After Peter and Claire leave, Nathan makes a phone call to Mr. Linderman saying "We have a problem."

text: Peter and Claire confront Nathan about Ted. With someone else having the ability to explode, Peter is hopeful that the explosion can be stopped. Nathan is doubtful, and points out that Peter's vision was of his own explosion. Peter responds that he had a vision of flying as well, despite the fact that it was Nathan who could fly - a fact that impresses Claire. After Peter and Claire leave, Nathan makes a phone call to Mr. Linderman saying "We have a problem."

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answer: No

answer: No

answer: No

answer: No

answer: 1

text: Attaining maximum lens speed requires engineering tradeoffs, and as such, "prime" (fixed focal length) lenses are generally faster than zoom lenses, and modern manual-focus lenses are generally faster than their autofocus counterparts.

text: Attaining maximum lens speed requires engineering tradeoffs, and as such, "

text: prime

text: " (fixed focal length) lenses are generally faster than

text: zoom lens

text: es, and modern manual-focus lenses are generally faster than their autofocus counterparts.

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answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: In those with anisometropic myopia (i.e. different amounts of nearsightedness between the two eyes), the dominant eye has typically been found to be the one with more myopia. As far as regards subjects with normal binocular vision, the widespread notion that the individual's better-sighted eye would tend to be the dominant eye has been challenged as lacking empirical basis.

text: In those with

text: anisometropic

text: myopia

text: (i.e. different amounts of nearsightedness between the two eyes), the dominant eye has typically been found to be the one with more myopia. As far as regards subjects with normal

text: binocular vision

text: , the widespread notion that the individual's better-sighted eye would tend to be the dominant eye has been challenged as lacking empirical basis.

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answers: different amounts of nearsightedness

answers: NDQ_018818

answers: the one with more myopia

answers: NDQ_018819

answers: anisometropic myopia

answers: NDQ_018820

answers: dominant

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Adaptic optic phoropter for automated vision correction

text: Adaptic optic phoropter for automated vision correction

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answers: 4

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answers: Myopia

answers: NDQ_018818

answers: Myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: hyperopic

answer: No

answer: No

answer: Yes

answer: No

answer: Yes

answer: 1

text: Toothed whale eyes are relatively small for their size, yet they do retain a good degree of eyesight. As well as this, the eyes are placed on the sides of its head, so their vision consists of two fields, rather than a binocular view as humans have. When a beluga surfaces, its lenses and corneas correct the nearsightedness that results from the refraction of light; they contain both rod and cone cells, meaning they can see in both dim and bright light. They do, however, lack short wavelength-sensitive visual pigments in their cone cells, indicating a more limited capacity for colour vision than most mammals. Most toothed whales have slightly flattened eyeballs, enlarged pupils (which shrink as they surface to prevent damage), slightly flattened corneas, and a  tapetum lucidum; these adaptations allow for large amounts of light to pass through the eye, and, therefore, a very clear image of the surrounding area. In water, a whale can see around  ahead of itself, but they have a smaller range above water. They also have glands on the eyelids and outer corneal layer that act as protection for the cornea.

text: Toothed whale eyes are relatively small for their size, yet they do retain a good degree of eyesight. As well as this, the eyes are placed on the sides of its head, so their vision consists of two fields, rather than a binocular view as humans have. When a

text: beluga

text: surfaces, its lenses and corneas correct the nearsightedness that results from the refraction of light; they contain both

text: rod

text: and

text: cone

text: cells, meaning they can see in both dim and bright light. They do, however, lack short wavelength-sensitive visual pigments in their cone cells, indicating a more limited capacity for colour vision than most mammals. Most toothed whales have slightly flattened eyeballs, enlarged pupils (which shrink as they surface to prevent damage), slightly flattened corneas, and a

text: tapetum lucidum

text: ; these adaptations allow for large amounts of light to pass through the eye, and, therefore, a very clear image of the surrounding area. In water, a whale can see around  ahead of itself, but they have a smaller range above water. They also have glands on the eyelids and

text: outer corneal layer

text: that act as protection for the cornea.

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answers: nearsightedness

answers: NDQ_018818

answers: on the sides of its head

answers: NDQ_018819

answers: when a beluga surfaces

answers: NDQ_018820

answers: flattened

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: In 1974 a refractive procedure called Radial Keratotomy (RK) was developed in the USSR by Svyatoslav Fyodorov and later introduced to the USA. RK involves making a number of cuts in the cornea to change its shape and correct refractive errors. The incisions are made with a diamond knife. Following the introduction of RK, doctors routinely corrected nearsightedness, farsightedness, and astigmatism using various applications of incisions on the cornea.

text: In 1974 a refractive procedure called

text: Radial Keratotomy

text: (RK) was developed in the USSR by

text: Svyatoslav Fyodorov

text: and later introduced to the USA. RK involves making a number of cuts in the cornea to change its shape and correct refractive errors. The incisions are made with a

text: diamond knife

text: . Following the introduction of RK, doctors routinely corrected nearsightedness, farsightedness, and astigmatism using various applications of incisions on the cornea.

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answers: farsightedness

answers: NDQ_018819

answers: farsightedness

answers: NDQ_018820

answers: farsighted

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: The earliest written records of lenses date to Ancient Greece, with Aristophanes' play The Clouds (424 BC) mentioning a burning-glass (a biconvex lens used to focus the sun's rays to produce fire). Some scholars argue that the archeological evidence indicates that there was widespread use of lenses in antiquity, spanning several millennia. Such lenses were used by artisans for fine work, and for authenticating seal impressions. The writings of Pliny the Elder (23–79) show that burning-glasses were known to the Roman Empire, and mentions what is arguably the earliest written reference to a corrective lens: Nero was said to watch the gladiatorial games using an emerald (presumably concave to correct for nearsightedness, though the reference is vague). Both Pliny and Seneca the Younger (3 BC–65) described the magnifying effect of a glass globe filled with water.

text: The earliest written records of lenses date to

text: Ancient Greece

text: , with

text: Aristophanes

text: ' play

text: The Clouds

text: (424 BC) mentioning a burning-glass (a

text: biconvex lens

text: used to

text: focus

text: the

text: sun

text: 's rays to produce fire). Some scholars argue that the archeological evidence indicates that there was widespread use of lenses in antiquity, spanning several millennia. Such lenses were used by artisans for fine work, and for authenticating

text: seal

text: impressions. The writings of

text: Pliny the Elder

text: (23–79) show that burning-glasses were known to the

text: Roman Empire

text: , and mentions what is arguably the earliest written reference to a

text: corrective lens

text: Nero

text: was said to watch the

text: gladiatorial games

text: using an

text: emerald

text: (presumably

text: concave

text: to correct for

text: nearsightedness

text: , though the reference is vague). Both Pliny and

text: Seneca the Younger

text: (3 BC–65) described the magnifying effect of a glass globe filled with

text: water

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answers: nearsightedness

answers: NDQ_018819

answers: nearsightedness

answers: NDQ_018820

answers: concave

answer: Yes

answer: Yes

answer: No

answer: Yes

answer: No

answer: 1

text: Spectacles or RGP contact lenses can be used to manage the astigmatism. when the condition worsens, surgical correction may be required.

text: Spectacles

text: or

text: RGP

text: contact lenses can be used to manage the

text: astigmatism

text: . when the condition worsens, surgical correction may be required.

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answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: Real human vision and perspective projection should (unless it is otherwise desired) look the same. The difference should be imperceptible. The base to rate the quality of the perspective projection is the real vision and the difference between them is the perspective projection distortion. Normal human vision should not be considered to present any distortion unless a disturbing factor is involved. Distortion in human vision appears when there is a visual problem involved. The use of lenses can also cause, modify or avoid these distortions. In photography a lens may magnify distortion.

text: Real human vision and perspective projection should (unless it is otherwise desired) look the same. The difference should be imperceptible. The base to rate the quality of the perspective projection is the real vision and the difference between them is the perspective projection distortion. Normal human vision should not be considered to present any distortion unless a disturbing factor is involved. Distortion in human vision appears when there is a visual problem involved. The use of lenses can also cause, modify or avoid these distortions. In photography a lens may magnify distortion.

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answers: Distortion in human vision

answers: NDQ_018818

answers: in myopia

answers: NDQ_018819

answers: Distortion

answers: NDQ_018820

answers: magnified

answer: Yes

answer: Yes

answer: No

answer: Yes

answer: No

answer: 1

text: Some physicians are skeptical about the efficacy of "vision therapy" stating that it lacks data and is mostly anecdotal. In 2009, the American Academy of Pediatrics along with the American Academy of Ophthalmology "essentially declared war" on developmental optometry, as Judith Warner wrote in a New York Times article. Even within the field of optometry the U.K. College of Optometrists noted the "Continued absence of rigorous scientific evidence to support behavioral management approaches" in the second college of Optometrists report. The American Academy of Pediatrics is also critical of behavioral optometry. In 2009 it reviewed 35 years of the literature in support of vision therapy and issued a statement — in conjunction with other ophthalmological associations — condemning the therapy and its contention that it could help with learning disabilities. Visual problems, it claimed, are not the basis for learning disabilities. It issued a stern warning about the seductions of treatments that sound convincing but aren’t based on science: "Ineffective, controversial methods of treatment such as vision therapy may give parents and teachers a false sense of security that a child’s learning difficulties are being addressed, may waste family and/or school resources and may delay proper instruction or remediation." The website by the American Association for Pediatric Ophthalmology and Strabismus states: "Behavioral vision therapy is considered to be scientifically unproven" and "There is no evidence that vision therapy delays the progression or leads to correction of myopia."

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answers: Myopia is also called farsightedness

answers: NDQ_018818

answers: Strabismus

answers: NDQ_018819

answers: myopia

answers: NDQ_018820

answers: myopia

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Blurry vision may result from any number of conditions not necessarily related to refractive errors. The diagnosis of a refractive error is usually confirmed by an eye care professional during an eye examination using a large number of lenses of different optical powers, and often a retinoscope (a procedure entitled retinoscopy) to measure objectively in which the patient views a distant spot while the clinician changes the lenses held before the patient's eye and watches the pattern of reflection of a small light shone on the eye.  Following that "objective refraction" the clinician typically shows the patient lenses of progressively higher or weaker powers in a process known as subjective refraction. Cycloplegic agents are frequently used to more accurately determine the amount of refractive error, particularly in children

text: Blurry vision may result from any number of conditions not necessarily related to refractive errors. The diagnosis of a refractive error is usually confirmed by an

text: eye care professional

text: during an

text: eye examination

text: using a large number of lenses of different optical powers, and often a

text: retinoscope

text: (a procedure entitled

text: retinoscopy

text: ) to measure objectively in which the patient views a distant spot while the clinician changes the lenses held before the patient's eye and watches the pattern of reflection of a small light shone on the eye.  Following that "objective refraction" the clinician typically shows the patient lenses of progressively higher or weaker powers in a process known as

text: subjective refraction

text: Cycloplegic

text: agents are frequently used to more accurately determine the amount of refractive error, particularly in children

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answers: Blurry vision

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answers: higher or weaker powers

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answers: weaker

answer: No

answer: No

answer: No

answer: No

answer: No

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text: Lens manufacturers have responded by making wide-angle lenses of much shorter focal lengths for these cameras. In doing this, they limit the diameter of the image projected to slightly more than the diagonal measurement of the photosensor. This gives the designers more flexibility in providing the optical corrections necessary to economically produce high-quality images at these short focal lengths, especially when the lenses are zoom lenses. Examples are 10 mm minimum focal length zoom lenses from several manufacturers. At 10 mm, these lenses provide the angle of view of a 15 mm lens on a full-frame camera when the crop factor is 1.5.

text: Lens manufacturers have responded by making wide-angle lenses of much shorter focal lengths for these cameras. In doing this, they limit the diameter of the image projected to slightly more than the diagonal measurement of the photosensor. This gives the designers more flexibility in providing the optical corrections necessary to economically produce high-quality images at these short focal lengths, especially when the lenses are zoom lenses. Examples are 10 mm minimum focal length zoom lenses from several manufacturers. At 10 mm, these lenses provide the angle of view of a 15 mm lens on a full-frame camera when the crop factor is 1.5.

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answers: on a 15 mm lens

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answers: NDQ_018820

answers: slightly more than the diagonal measurement of the photosensor

answer: Yes

answer: Yes

answer: No

answer: No

answer: No

answer: 1

text: An optician, or dispensing optician, is a technical practitioner who designs, fits and dispenses corrective lenses for the correction of a person's vision. Opticians determine the specifications of various ophthalmic appliances that will give the necessary correction to a person's eyesight. Some registered or licensed opticians also design and fit special appliances to correct cosmetic, traumatic or anatomical defects. These devices are called shells or artificial eyes. Other registered or licensed opticians manufacture lenses to their own specifications and design and manufacture spectacle frames and other devices.

text: An optician, or dispensing optician, is a technical practitioner who designs, fits and dispenses corrective lenses for the correction of a person's vision. Opticians determine the specifications of various

text: ophthalmic

text: appliances that will give the necessary correction to a person's

text: eyesight

text: . Some registered or licensed opticians also design and fit special appliances to correct cosmetic, traumatic or anatomical defects. These devices are called shells or

text: artificial eyes

text: . Other registered or licensed opticians manufacture lenses to their own specifications and design and manufacture spectacle frames and other devices.

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answers: Myopia

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answers: Myopia

answers: NDQ_018819

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answers: artificial eyes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: § 70108-70110 Foreign Port assessmentForeign ports will be assessed to determine whether or not they are sufficiently secure.  Unless they pose an immediate threat, foreign ports that are not deemed in compliance with US security requirements will be notified and given 90 days to correct the problem(s).  Failure to correct the problem(s) identified in the assessment may result in cargo from that foreign port being denied entry in the US. Transhipment ports are included in the assessment.

text: § 70108-70110 Foreign Port assessmentForeign ports will be assessed to determine whether or not they are sufficiently secure.  Unless they pose an immediate threat, foreign ports that are not deemed in compliance with US security requirements will be notified and given 90 days to correct the problem(s).  Failure to correct the problem(s) identified in the assessment may result in cargo from that foreign port being denied entry in the US. Transhipment ports are included in the assessment.

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answers: Myopia is also called farsightedness

answers: NDQ_018818

answers: in compliance with US security requirements

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: not deemed in compliance

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 0

text: Refractive amblyopia may result from anisometropia (unequal refractive error between the two eyes). Anisometropia exists when there is a difference in the power between the two eyes. The eye which provides the brain with a clearer image typically becomes the dominant eye. The image in the other eye is blurred, which results in abnormal development of one half of the visual system. Refractive amblyopia is usually less severe than strabismic amblyopia and is commonly missed by primary care physicians because of its less dramatic appearance and lack of obvious physical manifestation, such as with strabismus. Given that the refractive correction of anisometropia by means of spectacles typically leads to different image magnification for the two eyes, which may in turn prevent binocular vision, a refractive correction using contact lenses is to be considered. Also pediatric refractive surgery is a treatment option, in particular if conventional approaches have failed due to aniseikonia or lack of compliance or both.

text: Refractive amblyopia may result from

text: anisometropia

text: (unequal refractive error between the two eyes). Anisometropia exists when there is a difference in the

text: power

text: between the two eyes. The eye which provides the brain with a clearer image typically becomes the dominant eye. The image in the other eye is blurred, which results in abnormal development of one half of the visual system. Refractive amblyopia is usually less severe than strabismic amblyopia and is commonly missed by

text: primary care physician

text: s because of its less dramatic appearance and lack of obvious physical manifestation, such as with strabismus. Given that the refractive correction of anisometropia by means of spectacles typically leads to different image magnification for the two eyes, which may in turn prevent

text: binocular vision

text: , a refractive correction using

text: contact lens

text: es is to be considered. Also

text: pediatric refractive surgery

text: is a treatment option, in particular if conventional approaches have failed due to

text: aniseikonia

text: or lack of compliance or both.

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answers: prevent binocular vision

answers: tqa2:L_1064/T_4975/2b0851f93b624e68d57d25335e6ac0f3

answers: 0

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answers: NDQ_018820

answers: 0

answers: NDQ_018817

answers: Anisometropia

answers: NDQ_018818

answers: the other eye is blurred

answers: NDQ_018819

answers: Anisometropia

answers: NDQ_018820

answers: dominant

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: 1

text: The Chicago Lighthouse Low Vision Clinic – the first of its kind in the Midwest and the second in the nation – was formally established in 1957, involving both the Illinois Optometric Association and the Chicago Ophthalmological Society, to provide low vision services for people whose vision cannot be improved with standard corrective lenses.

text: The Chicago Lighthouse Low Vision Clinic – the first of its kind in the

text: Midwest

text: and the second in the nation – was formally established in 1957, involving both the

text: Illinois Optometric Association

text: and the

text: Chicago Ophthalmological Society

text: , to provide low vision services for people whose vision cannot be improved with standard corrective lenses.

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answers: myopia

answers: NDQ_018818

answers: low vision

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: squinted

answer: No

answer: No

answer: Yes

answer: No

answer: Yes

answer: 1

text: Myopia (nearsightedness), hyperopia (farsightedness) or astigmatism.

text: Myopia

text: (nearsightedness),

text: hyperopia

text: (farsightedness) or

text: astigmatism

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answers: 0

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answers: 0

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answers: 0

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answers: 1

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answers: 0

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answers: 0

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answers: 0

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answers: 1

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answers: 0

answers: NDQ_018817

answers: 3

answers: NDQ_018818

answers: 0

answers: NDQ_018819

answers: 4

answers: NDQ_018820

answers: 0

answers: NDQ_018817

answers: hyperopia

answers: NDQ_018818

answers: nearsightedness

answers: NDQ_018819

answers: farsightedness

answers: NDQ_018820

answers: farsighted

answer: No

answer: No

answer: Yes

answer: No

answer: Yes

answer: 1

text: A person's visual acuity is registered documenting the following: whether the test was for distant or near vision, the eye(s) evaluated and whether corrective lenses (i.e. glasses or contact lenses) were used:

text: A person's visual acuity is registered documenting the following: whether the test was for distant or near vision, the eye(s) evaluated and whether

text: corrective lenses

text: (i.e.

text: glasses

text: or

text: contact lens

text: es) were used:

answers: tqa2:L_1064/T_4973/31eb75e0cdfe3c33b4ec76716c6382b7

answers: 0

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answer: Yes

answer: Yes

answer: Yes

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answer: Yes

answer: 1

text: Corrective lenses can be produced in many different shapes from a circular lens called a lens blank.  Lens blanks are cut to fit the shape of the frame that will hold them.  Frame styles vary and fashion trends change over time, resulting in a multitude of lens shapes.  For lower power lenses, there are few restrictions which allows for many trendy and fashionable shapes.  Higher power lenses can cause distortion of peripheral vision and may become thick and heavy if a large lens shape is used.  However, if the lens becomes too small, the field of view can be drastically reduced.  Bifocal, trifocal, and progressive lenses generally require a taller lens shape to leave room for the different segments while preserving an adequate field of view through each segment. Frames with rounded edges are the most efficient for correcting myopic prescriptions, with perfectly round frames being the most efficient. Before the advent of eyeglasses as a fashion item, when frames were constructed with only functionality in mind, virtually all eyeglasses were either round, oval, or curved octagons. It was not until glasses began to be seen as an accessory that different shapes were introduced to be more aesthetically pleasing than functional.

text: Corrective lenses can be produced in many different shapes from a circular lens called a lens blank.  Lens blanks are cut to fit the shape of the frame that will hold them.  Frame styles vary and fashion trends change over time, resulting in a multitude of lens shapes.  For lower power lenses, there are few restrictions which allows for many trendy and fashionable shapes.  Higher power lenses can cause distortion of peripheral vision and may become thick and heavy if a large lens shape is used.  However, if the lens becomes too small, the field of view can be drastically reduced.

text: Bifocal

text: trifocal

text: , and

text: progressive lens

text: es generally require a taller lens shape to leave room for the different segments while preserving an adequate field of view through each segment. Frames with rounded edges are the most efficient for correcting

text: myopic

text: prescriptions, with perfectly round frames being the most efficient. Before the advent of eyeglasses as a fashion item, when frames were constructed with only functionality in mind, virtually all eyeglasses were either round, oval, or curved octagons. It was not until glasses began to be seen as an accessory that different shapes were introduced to be more aesthetically pleasing than functional.

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answers: frames with rounded edges

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answers: too small

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: The vision is critical of aspects of modern representative democracies arguing that the level of political control by the people is not sufficient. To address this problem Parpolity suggests a system of Nested Councils, which would include every adult member of a given society.

text: The vision is critical of aspects of modern

text: representative democracies

text: arguing that the level of political control by the people is not sufficient. To address this problem Parpolity suggests a system of Nested Councils, which would include every adult member of a given society.

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answers: squished

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Progressive spectacle lenses, also called progressive addition lenses (PAL), progressive power lenses, graduated prescription lenses, and varifocal or multifocal lenses, are corrective lenses used in eyeglasses to correct presbyopia and other disorders of accommodation. They are characterised by a gradient of increasing lens power, added to the wearer's correction for the other refractive errors. The gradient starts at the wearer's distance prescription, at the top of the lens and reaches a maximum addition power, or the full reading addition, at the bottom of the lens. The length of the progressive power gradient on the lens surface depends on the design of the lens, with a final addition power between 0.75 and 3.50 dioptres.  The addition value prescribed depends on the level of presbyopia of the patient. In general the older the patient, the higher the addition.

text: Progressive spectacle lenses, also called progressive addition lenses (PAL), progressive power lenses, graduated prescription lenses, and varifocal or multifocal lenses, are

text: corrective lens

text: es used in

text: eyeglass

text: es to correct

text: presbyopia

text: and other disorders of

text: accommodation

text: . They are characterised by a gradient of increasing

text: lens power

text: , added to the wearer's correction for the other

text: refractive errors

text: . The gradient starts at the wearer's distance prescription, at the top of the

text: lens

text: and reaches a maximum addition power, or the full reading addition, at the bottom of the lens. The length of the progressive power gradient on the lens surface depends on the design of the lens, with a final addition power between 0.75 and 3.50

text: dioptre

text: s.  The addition value prescribed depends on the level of

text: presbyopia

text: of the patient. In general the older the patient, the higher the addition.

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answers: presbyopia

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: What are the factors which cause a gap between the existing and desired behavior of stakeholders? Is the problem due to the stakeholders' lack of awareness or knowledge of the nature of the problem? Or is it attitudinal in nature? Could the gap be due to their lack of skills to carry out certain practices?Situation analysis likewise includes assessing the communication resources in the area which could be tapped for the communication program. Knowledge of the area's mass and small media, as well as interpersonal means of communication, should contribute substantially to strategy development.Programme analysisWhen doing program analysis, program planners need to take both an inward and an outward look at the situation that is, looking at the organization's own vision, policies, resources, strengths, and weaknesses relevant to the problem.Are there adequate resources to realize this vision? How well are program managers using available resources? At the same time, it is important to scan the environment for existing programs that could affect, positively or negatively, the communication strategy to be developed.

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answers: Knowledge of the area's mass and small media

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answers: hyperopia is also called nearsightedness

answers: NDQ_018820

answers: blinded

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: There is tentative evidence that near-sightedness can be prevented by having young children spend more time outside. This may be related to natural light exposure. Near-sightedness can be corrected with eyeglasses, contact lenses, or surgery. Eyeglasses are the easiest and safest method of correction. Contact lenses can provide a wider field of vision; however are associated with a risk of infection. Refractive surgery permanently changes the shape of the cornea.

text: There is tentative evidence that near-sightedness can be prevented by having young children spend more time outside. This may be related to

text: natural light

text: exposure. Near-sightedness can be corrected with

text: eyeglass

text: es,

text: contact lenses

text: , or

text: surgery

text: . Eyeglasses are the easiest and safest method of correction. Contact lenses can provide a wider

text: field of vision

text: ; however are associated with a risk of infection.

text: Refractive surgery

text: permanently changes the shape of the cornea.

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answers: near

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answers: near

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answers: NDQ_018820

answers: changes the shape

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: In a 2011 interview with Prevention, Inaba claims that she is legally blind, having a vision of 20/750 which is corrected with eye glasses and contact lenses.  The American Foundation for the Blind defines legal blindness as vision worse than 20/200 with the best possible correction (even with corrective lenses).  She also revealed that she suffers from spinal stenosis.

text: In a 2011 interview with

text: Prevention

text: , Inaba claims that she is

text: legally blind

text: , having a vision of

text: which is corrected with

text: eye glasses

text: and

text: contact lenses

text: .  The

text: American Foundation for the Blind

text: defines legal blindness as vision worse than 20/200 with the best possible correction (even with

text: corrective lenses

text: ).  She also revealed that she suffers from

text: spinal stenosis

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answers: legally blind

answers: NDQ_018818

answers: 20/750

answers: NDQ_018819

answers: 20/750

answers: NDQ_018820

answers: worse than 20/200

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: If an examination indicates that corrective lenses are appropriate, the prescriber generally provides the patient with an eyewear prescription at the conclusion of the exam. In the United States, the Federal Trade Commission requires eyewear prescribers to give each patient a copy of their prescription immediately following an exam even if the patient does not ask for a copy.

text: If an examination indicates that corrective lenses are appropriate, the prescriber generally provides the patient with an eyewear prescription at the conclusion of the exam. In the

text: United States

text: , the

text: Federal Trade Commission

text: requires eyewear prescribers to give each patient a copy of their prescription immediately following an exam even if the patient does not ask for a copy.

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answers: 0

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answers: 4

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answers: 0

answers: NDQ_018817

answers: corrective lenses

answers: NDQ_018818

answers: Myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: hyperopic

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

answers: NDQ_018817

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answers: 0

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answers: 4

answers: NDQ_018820

answers: 0

answers: NDQ_018817

answers: farsightedness

answers: NDQ_018818

answers: in myopia, images focus

answers: NDQ_018819

answers: hyperopia is also called nearsightedness

answers: NDQ_018820

answers: hyperopic

answer: No

answer: Yes

answer: No

answer: No

answer: No

answer: 1

text: The number of people globally with refractive errors that have not been corrected was estimated at 660 million (10 per 100 people) in 2013.

text: The number of people globally with refractive errors that have not been corrected was estimated at 660 million (10 per 100 people) in 2013.

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answers: 0

answers: tqa2:L_1064/T_4974/90e5e56c76b9ddb03553d20c0b995fc9

answers: 2: The answer has limited relevance and completeness, with noticeable gaps or inaccuracy.

answers: tqa2:L_1064/T_4974/9bacc41c11fe8bd0cca21f1f5ffd3c85

answers: 0

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answers: 0

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answers: 2: The answer has limited relevance and completeness, with significant gaps or inaccuracies.

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

answers: NDQ_018817

answers: 4

answers: NDQ_018818

answers: 0

answers: NDQ_018819

answers: 4

answers: NDQ_018820

answers: 0

answers: NDQ_018817

answers: myopia is also called farsightedness

answers: NDQ_018818

answers: in myopia, images focus

answers: NDQ_018819

answers: hyperopia is also called nearsightedness

answers: NDQ_018820

answers: uncorrected

answer: Yes

answer: No

answer: Yes

answer: No

answer: Yes

answer: 1

text: Convex lenses have positive dioptric value and are generally used to correct hyperopia (farsightedness) or to allow people with presbyopia (the limited accommodation of advancing age) to read at close range. Concave lenses have negative dioptric value and generally correct myopia (nearsightedness). Typical glasses for mild myopia will have a power of −1.00 to −3.00 dioptres, while over the counter reading glasses will be rated at +1.00 to +3.00 dioptres. Optometrists usually measure refractive error using lenses graded in steps of 0.25 dioptres.

text: Convex lens

text: es have positive dioptric value and are generally used to correct

text: hyperopia

text: (farsightedness) or to allow people with

text: presbyopia

text: (the limited accommodation of advancing age) to read at close range.

text: Concave lens

text: es have negative dioptric value and generally correct

text: myopia

text: (nearsightedness). Typical glasses for mild myopia will have a power of −1.00 to −3.00 dioptres, while

text: over the counter

text: reading glasses

text: will be rated at +1.00 to +3.00 dioptres.

text: Optometrist

text: s usually measure

text: refractive error

text: using lenses graded in steps of 0.25 dioptres.

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answers: 4

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text: One of the experiments involving JW attempted to determine each hemisphere's ability to perform simple addition, subtraction, multiplication and division. On each trial, an arithmetic problem was presented in the center of the screen followed by a central cross hair. After studying the problem, a number posing as the answer was presented to each hemisphere exclusively by JW's vision fixated on a central cross hair. Probes (stimuli) were then presented for 150 ms to either the left visual field/right hemisphere (LVF/RH) or to the right visual field/left hemisphere (RVF/LH). The position of the probe fell outside any zone of naso-temporal overlap (binocular vision) to ensure that stimuli were perceived only by the hemisphere contralateral to the visual field of the stimuli. JW was instructed to press a certain key if the probe was the correct solution and another key if the probe was the incorrect solution. Results showed that the effects of visual field was significant with performance of the left hemisphere being better than that of the right hemisphere; the left hemisphere correctly chose the correct answer on all four arithmetic operations approximately 90% of the time while the right hemisphere was at chance. These results suggest left hemisphere specialization for calculation.

text: One of the experiments involving JW attempted to determine each hemisphere's ability to perform simple addition, subtraction, multiplication and division. On each trial, an arithmetic problem was presented in the center of the screen followed by a central cross hair. After studying the problem, a number posing as the answer was presented to each hemisphere exclusively by JW's vision fixated on a central cross hair. Probes (stimuli) were then presented for 150 ms to either the left visual field/right hemisphere (LVF/RH) or to the right visual field/left hemisphere (RVF/LH). The position of the probe fell outside any zone of naso-temporal overlap (binocular vision) to ensure that stimuli were perceived only by the hemisphere

text: contralateral

text: to the visual field of the stimuli. JW was instructed to press a certain key if the probe was the correct solution and another key if the probe was the incorrect solution. Results showed that the effects of visual field was significant with performance of the left hemisphere being better than that of the right hemisphere; the left hemisphere correctly chose the correct answer on all four arithmetic operations approximately 90% of the time while the right hemisphere was at chance. These results suggest left hemisphere specialization for calculation.

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text: In August 2013, Sigma announced that starting the following month, it would offer a mount conversion service for its newest "Global Vision" lenses—those with either an "A" (Art), "C" (Contemporary), or "S" (Sport) as part of their model name. For a cost that varies with lens and market—from $80 to $250 in the U.S., not including shipping costs—owners can send their lenses to their local Sigma company, which in turn sends them to Japan for mount replacement, including calibration and optimization for the new camera system. Lenses designed for DSLRs can be converted to Canon EF, Nikon F, Pentax K, Sigma SA, or Sony A mounts; those designed for MILCs can be converted to Micro Four Thirds or Sony E-mount.

text: In August 2013, Sigma announced that starting the following month, it would offer a mount conversion service for its newest "Global Vision" lenses—those with either an "A" (Art), "C" (Contemporary), or "S" (Sport) as part of their model name. For a cost that varies with lens and market—from $80 to $250 in the U.S., not including shipping costs—owners can send their lenses to their local Sigma company, which in turn sends them to Japan for mount replacement, including calibration and optimization for the new camera system. Lenses designed for DSLRs can be converted to Canon EF, Nikon F, Pentax K, Sigma SA, or Sony A mounts; those designed for MILCs can be converted to Micro Four Thirds or Sony E-mount.

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text: Later with the availability of the hardware and some processing power the research shifted to Image processing which involves pixel-level operations, like finding edges, de-noising images or applying filters to name a few. There was some great progress in this field but the problem of vision which was to make the machines understand the images was still not being addressed. During this time the neural networks also resurfaced as it was shown that the limitations of the perceptrons can be overcome by Multi-layer perceptrons. Also in the early 90’s convolutional neural networks were born which showed great results on digit recognition but did not scale up well on harder problems.

text: Later with the availability of the hardware and some processing power the research shifted to

text: Image processing

text: which involves pixel-level operations, like

text: finding edges

text: de-noising images

text: or applying filters to name a few. There was some great progress in this field but the problem of vision which was to make the machines understand the images was still not being addressed. During this time the neural networks also resurfaced as it was shown that the limitations of the perceptrons can be overcome by

text: Multi-layer perceptrons

text: . Also in the early 90’s

text: convolutional neural network

text: s were born which showed great results on digit recognition but did not scale up well on harder problems.

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answers: in myopia

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answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Anyone over the age of 35 is at risk for developing presbyopia and all people become affected to some degree. The condition was mentioned as early as the writings of the Ancient Greek, Aristotle. Glass lenses first came into use for the problem in the late 13th century. The word is from the Greek πρέσβυς (presbys) meaning "old man" and ὤψ (ops) meaning to "see like".

text: Anyone over the age of 35 is at risk for developing presbyopia and all people become affected to some degree. The condition was mentioned as early as the writings of the

text: Ancient Greek

text: Aristotle

text: . Glass lenses first came into use for the problem in the late 13th century. The word is from the Greek πρέσβυς (presbys) meaning "old man" and ὤψ (ops) meaning to "see like".

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answers: Myopia is also called farsightedness

answers: NDQ_018818

answers: Myopia

answers: NDQ_018819

answers: presbyopia

answers: NDQ_018820

answers: over 35

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: 1

text: The biggest employer, with roughly 1,000 employees is Ciba Vision GmbH, which deals in research, development, manufacture and marketing of contact lenses and products for their care.

text: The biggest employer, with roughly 1,000 employees is

text: Ciba Vision

text: GmbH, which deals in research, development, manufacture and marketing of

text: contact lens

text: es and products for their care.

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answers: NDQ_018820

answers: hyperopic

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: A University of Pennsylvania study indicated that sleeping with the light on or with a nightlight was associated with a greater incidence of nearsightedness in children. A later study at The Ohio State University, however, contradicted the earlier conclusion. Both studies were published in the journal Nature.

text: A

text: University of Pennsylvania

text: study indicated that sleeping with the light on or with a nightlight was associated with a greater incidence of

text: nearsightedness

text: in children. A later study at

text: The Ohio State University

text: , however, contradicted the earlier conclusion. Both studies were published in the journal

text: Nature

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answers: nearsightedness

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answers: nearsightedness

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answers: nearsightedness

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Susac's Syndrome is named for Dr. John Susac (1940-2012), of Winter Haven, Florida, who first described it in 1979. Susac's syndrome is a very rare disease, of still unknown etiology, and many persons who experience it do not display the bizarre symptoms named here. Their speech can be affected, such as the case of a female of late teens who suffered speech issues and hearing problems, and many experience unrelenting and intense headaches and migraines, some form of hearing loss, and impaired vision. The problem usually corrects itself, but this can take up to five years. In some cases, subjects can become confused. The syndrome usually affects women around the age of 18 years, with female to male ratio of cases of 2:1.

text: Susac's Syndrome is named for Dr. John Susac (1940-2012), of

text: Winter Haven, Florida

text: , who first described it in 1979. Susac's syndrome is a very rare disease, of still unknown etiology, and many persons who experience it do not display the bizarre symptoms named here. Their speech can be affected, such as the case of a female of late teens who suffered speech issues and hearing problems, and many experience unrelenting and intense headaches and migraines, some form of hearing loss, and impaired vision. The problem usually corrects itself, but this can take up to five years. In some cases, subjects can become confused. The syndrome usually affects women around the age of 18 years, with female to male ratio of cases of 2:1.

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answers: impaired vision

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answers: impaired vision

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answers: Hyperopia

answers: NDQ_018820

answers: impaired vision

answer: No

answer: Yes

answer: No

answer: No

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answer: 1

text: The fact that optical powers are approximately additive enables an eye care professional to prescribe corrective lenses as a simple correction to the eye's optical power, rather than doing a detailed analysis of the entire optical system (the eye and the lens). Optical power can also be used to adjust a basic prescription for reading. Thus an eye care professional, having determined that a myopic (nearsighted) person requires a basic correction of, say, −2 dioptres to restore normal distance vision, might then make a further prescription of 'add 1' for reading, to make up for lack of accommodation (ability to alter focus). This is the same as saying that −1 dioptre lenses are prescribed for reading.

text: The fact that optical powers are approximately

text: additive

text: enables an

text: eye care professional

text: to prescribe

text: corrective lens

text: es as a simple correction to the eye's optical power, rather than doing a detailed analysis of the entire optical system (the eye and the lens). Optical power can also be used to adjust a basic

text: prescription

text: for reading. Thus an eye care professional, having determined that a

text: myopic

text: (nearsighted) person requires a basic correction of, say, −2 dioptres to restore normal distance vision, might then make a further prescription of 'add 1' for reading, to make up for lack of

text: accommodation

text: (ability to alter focus). This is the same as saying that −1 dioptre lenses are prescribed for reading.

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answers: nearsighted

answer: Yes

answer: Yes

answer: Yes

answer: Yes

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answer: 1

text: There is currently no cure for GAPO syndrome, but some options are available to reduce the symptoms. Nearsightedness, which affects some sufferers of the disease, can be treated by corrective lenses. Unfortunately, optic atrophy as a result of degradation of the optic nerve (common with GAPO syndrome) cannot be corrected. Corticosteroids have been proposed as a treatment for optic nerve atrophy, but their effectiveness is disputed, and no steroid based treatments are currently available.

text: There is currently no cure for GAPO syndrome, but some options are available to reduce the symptoms.

text: Nearsightedness

text: , which affects some sufferers of the disease, can be treated by

text: corrective lens

text: es. Unfortunately, optic atrophy as a result of degradation of the optic nerve (common with GAPO syndrome) cannot be corrected.

text: Corticosteroid

text: s have been proposed as a treatment for optic nerve atrophy, but their effectiveness is disputed, and no steroid based treatments are currently available.

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answers: Nearsightedness

answers: NDQ_018818

answers: nearsightedness

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: nearsightedness

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: Subjective Refraction is an attempt to determine, by trial and error using the patient’s cooperation, the combination of lenses that will provide the best corrected visual acuity (BCVA). It is a clinical examination used by orthoptists, optometrists and ophthalmologists to determine a patient's need for refractive correction, in the form of glasses or contact lenses.The aim is to improve current unaided vision or vision with current glasses.

text: Subjective Refraction is an attempt to determine, by trial and error using the patient’s cooperation, the combination of lenses that will provide the best corrected visual acuity (BCVA). It is a clinical examination used by

text: orthoptists

text: optometrists

text: and

text: ophthalmologists

text: to determine a patient's need for refractive correction, in the form of glasses or contact lenses.The aim is to improve current unaided vision or vision with current glasses.

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answers: NDQ_018817

answers: refractive correction

answers: NDQ_018818

answers: unaided vision

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: unaided vision

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: 1

text: Mark Liberman, a professor of linguistics and computer science at the University of Pennsylvania, questioned on his blog, Language Log, many of the claims which Sax made in his first book Why Gender Matters. Liberman asserted that there were serious problems with Sax's claims about sex differences in hearing, vision, and connections between emotions and language. Sax wrote to Liberman, and, receiving no reply, in October 2010 on the website of Why Gender Matters, Sax acknowledged that points in his book were "out-of-date or inaccurate" and that his work, which was initially published in 2005, has been clarified by studies published by third parties in 2007 and 2009.  He now provides updated references to scholarly papers on these three issues and he "expanded, updated, and corrected" the discussion of sex differences in hearing with a new article, "Sex Differences in Hearing", in October 2010; and the discussion of sex differences in vision is updated in chapter 5 of his book Girls on the Edge.

text: Mark Liberman

text: , a professor of linguistics and computer science at the

text: University of Pennsylvania

text: , questioned on his blog,

text: Language Log

text: , many of the claims which Sax made in his first book Why Gender Matters. Liberman asserted that there were serious problems with Sax's claims about sex differences in hearing, vision, and connections between emotions and language. Sax wrote to Liberman, and, receiving no reply, in October 2010 on the website of Why Gender Matters, Sax acknowledged that points in his book were "out-of-date or inaccurate" and that his work, which was initially published in 2005, has been clarified by studies published by third parties in 2007 and 2009.  He now provides updated references to scholarly papers on these three issues and he "expanded, updated, and corrected" the discussion of sex differences in hearing with a new article, "Sex Differences in Hearing", in October 2010; and the discussion of sex differences in vision is updated in chapter 5 of his book Girls on the Edge.

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answers: myopia

answers: NDQ_018818

answers: vision

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: out-of-focus

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Some sports-optimized sunglasses have interchangeable lens options. Lenses can be easily removed and swapped for a different lens, usually of a different color. The purpose is to allow the wearer to easily change lenses when light conditions or activities change. The reasons are that the cost of a set of lenses is less than the cost of a separate pair of glasses, and carrying extra lenses is less bulky than carrying multiple pairs of glasses. It also allows easy replacement of a set of lenses if they are damaged. The most common type of sunglasses with interchangeable lenses has a single lens or shield that covers both eyes. Styles that use two lenses also exist, but are less common.

text: Some sports-optimized sunglasses have interchangeable lens options. Lenses can be easily removed and swapped for a different lens, usually of a different color. The purpose is to allow the wearer to easily change lenses when light conditions or activities change. The reasons are that the cost of a set of lenses is less than the cost of a separate pair of glasses, and carrying extra lenses is less bulky than carrying multiple pairs of glasses. It also allows easy replacement of a set of lenses if they are damaged. The most common type of sunglasses with interchangeable lenses has a single lens or shield that covers both eyes. Styles that use two lenses also exist, but are less common.

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answers: Myopia is also called farsightedness

answers: NDQ_018818

answers: in myopia

answers: NDQ_018819

answers: lenses can be easily removed

answers: NDQ_018820

answers: single lens or shield

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Typically, viewers are screened for normal vision or corrected-to-normal vision.

text: Typically, viewers are screened for

text: normal vision

text: or corrected-to-normal vision.

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answers: normal vision

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answers: normal vision

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answers: normal

answer: No

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: Medical professionals characterize refractive errors such as nearsightedness, farsightedness, astigmatism, and presbyopia (the age-related blurring of near-point vision) as consequences of the eye's shape and other basic anatomy, which there is no evidence that any exercise can alter. Bates, however, believed that these conditions are caused by tension of the muscles surrounding the eyeball, which he believed prevents the eyeball from sufficiently changing shape (per his explanation of accommodation) when gaze is shifted nearer or farther. Bates characterized this supposed muscular tension as the consequence of a "mental strain" to see, the relief of which he claimed would instantly improve sight. He also linked disturbances in the circulation of blood, which he said is "very largely influenced by thought", not only to refractive errors but also to double vision, crossed-eye, lazy eye, and to more serious eye conditions such as cataracts and glaucoma. His therapies were based on these assumptions.

text: Medical professionals characterize

text: refractive errors

text: such as nearsightedness, farsightedness, astigmatism, and

text: presbyopia

text: (the age-related blurring of near-point vision) as consequences of the eye's shape and other basic anatomy, which there is no evidence that any exercise can alter. Bates, however, believed that these conditions are caused by tension of the muscles surrounding the eyeball, which he believed prevents the eyeball from sufficiently changing shape (per his explanation of accommodation) when gaze is shifted nearer or farther. Bates characterized this supposed muscular tension as the consequence of a "mental strain" to see, the relief of which he claimed would instantly improve sight. He also linked disturbances in the

text: circulation

text: of blood, which he said is "very largely influenced by thought", not only to refractive errors but also to

text: double vision

text: crossed-eye

text: lazy eye

text: , and to more serious eye conditions such as

text: cataract

text: s and

text: glaucoma

text: . His therapies were based on these assumptions.

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answers: refractive errors

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answers: nearer

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answers: refractive errors

answers: NDQ_018820

answers: nearer or farther

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: Beginning in April 2009, McCann was bothered by blurry vision in his left eye, due to a slight vision change following 2007 LASIK surgery. He decided to opt for glasses when contact lenses proved uncomfortable. In May 2009, Oakley, Inc. made special glasses for McCann to correct the vision problem and allow for comfort under the catcher's mask. McCann remarked, "I need my Oakleys. I have to have the wraparounds for my peripheral vision." In 2009, he had more errors at catcher than any other major leaguer, with 12, and had the lowest fielding percentage among them (.988).

text: Beginning in April 2009, McCann was bothered by blurry vision in his left eye, due to a slight vision change following 2007

text: LASIK

text: surgery. He decided to opt for glasses when contact lenses proved uncomfortable. In May 2009,

text: Oakley, Inc.

text: made special glasses for McCann to correct the vision problem and allow for comfort under the catcher's mask. McCann remarked, "I need my Oakleys. I have to have the wraparounds for my peripheral vision." In 2009, he had more errors at catcher than any other major leaguer, with 12, and had the lowest fielding percentage among them (.988).

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answers: peripheral vision

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answers: blurry vision

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answers: blurry

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: Corrective lenses provide a range of vision correction, some as high as +4.0 diopter. Some with presbyopia choose varifocal or bifocal lenses to eliminate the need for a separate pair of reading glasses; specialized preparations of varifocals or bifocals usually require the services of an optometrist. Some newer bifocal or varifocal spectacle lenses attempt to correct both near and far vision with the same lens.

text: Corrective lenses

text: provide a range of vision correction, some as high as +4.0 diopter. Some with presbyopia choose

text: varifocal

text: or

text: bifocal lenses

text: to eliminate the need for a separate pair of reading glasses; specialized preparations of varifocals or bifocals usually require the services of an optometrist. Some newer bifocal or varifocal spectacle lenses attempt to correct both near and far vision with the same lens.

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text: The most common causes of visual impairment globally are uncorrected refractive errors (43%), cataracts (33%), and glaucoma (2%). Refractive errors include near sighted, far sighted, presbyopia, and astigmatism. Cataracts are the most common cause of blindness. Other disorders that may cause visual problems include age related macular degeneration, diabetic retinopathy, corneal clouding, childhood blindness, and a number of infections. Visual impairment can also be caused by problems in the brain due to stroke, prematurity, or trauma among others. These cases are known as cortical visual impairment. Screening for vision problems in children may improve future vision and educational achievement. Screening adults without symptoms is of uncertain benefit. Diagnosis is by an eye exam.

text: The most common causes of visual impairment globally are uncorrected

text: refractive errors

text: cataract

text: s (33%), and

text: glaucoma

text: (2%). Refractive errors include

text: near sighted

text: far sighted

text: presbyopia

text: , and

text: astigmatism

text: . Cataracts are the most common cause of blindness. Other disorders that may cause visual problems include

text: age related macular degeneration

text: diabetic retinopathy

text: corneal clouding

text: childhood blindness

text: , and a number of

text: infection

text: s. Visual impairment can also be caused by problems in the

text: brain

text: due to

text: stroke

text: prematurity

text: , or trauma among others. These cases are known as

text: cortical visual impairment

text: . Screening for vision problems in children may improve future vision and educational achievement. Screening adults without symptoms is of uncertain benefit. Diagnosis is by an

text: eye exam

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text: In January 2013, Barbara saw IDEO founder David Kelley speak on 60 Minutes about the importance of cultivating a diversity of experience among team members developing new products and services. Barbara wrote to the company, offering to help IDEO design for aging and low-vision populations. Then at age 89, she began working for IDEO in their Bay Area offices and has been directly involved with client projects related to contact lenses, health care delivery, and retirement home services.

text: In January 2013, Barbara saw

text: IDEO

text: founder David Kelley speak on 60 Minutes about the importance of cultivating a diversity of experience among team members developing new products and services. Barbara wrote to the company, offering to help IDEO design for aging and low-vision populations. Then at age 89, she began working for IDEO in their Bay Area offices and has been directly involved with client projects related to contact lenses, health care delivery, and retirement home services.

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text: The main problem with service robotic systems such as the care-providing robot FRIEND is that they have to operate in dynamic surroundings where the state of the environment is unpredictable and changes stochastically, hence two main problems have been encountered when developing image processing systems for service robotics: unstructured environment and variable illumination conditions. They have to cope with a large amount of visual information and for the implementation of the vision system a high degree of complexity is necessary. A second major problem in robot vision is the wide spectrum of illumination conditions that appear during the on-line operation of the machine vision system, since colors are one important attribute in object recognition. The human visual system has the ability to compute color descriptors that stay constant even in variable illumination conditions, which is not the case for machine vision systems. A key requirement in this field is the reliable recognition of objects in the robot's camera image, extraction of object features from the images and, based on the extracted features, subsequent correct object localization in a complex 3D environment so that these information can be used for reliable object grasping and manipulation.

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answers: 4

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answers: Myopia is also called farsightedness

answers: NDQ_018818

answers: in myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: unstructured

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Vision Research and Artificial Intelligence fields are involved in the definition of suitable approaches to the problem. See Computer Vision

text: Vision Research and Artificial Intelligence fields are involved in the definition of suitable approaches to the problem. See

text: Computer Vision

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answers: farsightedness

answers: NDQ_018818

answers: Myopia

answers: NDQ_018819

answers: Hyperopia is also called nearsightedness

answers: NDQ_018820

answers: hyperopic

answer: No

answer: No

answer: Yes

answer: No

answer: No

answer: 1

text: Single vision lenses correct for only one distance.  If they correct for far distance, the person must accommodate to see clearly up close.  If the person cannot accommodate, they may need a separate pair of single vision glasses for near distances, or else use a multifocal lens (see below).

text: Single vision lenses correct for only one distance.  If they correct for far distance, the person must

text: accommodate

text: to see clearly up close.  If the person cannot accommodate, they may need a separate pair of single vision glasses for near distances, or else use a multifocal lens (see below).

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answers: 3

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answers: NDQ_018817

answers: far distance

answers: NDQ_018818

answers: up close

answers: NDQ_018819

answers: nearsightedness

answers: NDQ_018820

answers: up close

answer: No

answer: No

answer: Yes

answer: No

answer: No

answer: 1

text: Independent from Young, George Biddell Airy discovered the phoneme of astigmatism on his own eye. Airy presented his observations on his own eye in February 1825 at the Cambridge Philosophical Society. Airy produced lenses to correct his vision problems by 1825,  while other sources put this into 1827 when Airy obtained cylindrical lenses from an optitian from Ipswich. The name for the condition was not given by Airy, but from William Whewell.

text: Independent from Young,

text: George Biddell Airy

text: discovered the phoneme of astigmatism on his own eye. Airy presented his observations on his own eye in February 1825 at the Cambridge Philosophical Society. Airy produced lenses to correct his vision problems by 1825,  while other sources put this into 1827 when Airy obtained cylindrical lenses from an optitian from Ipswich. The name for the condition was not given by Airy, but from

text: William Whewell

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answers: astigmatism

answers: NDQ_018818

answers: astigmatism

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: astigmatism

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: 1

text: The most frequently pointed-out problem with this lens is the placement of the IS and AF buttons, that makes them prone to accidental flipping during hand-held shooting. Some photographers solve this simply by covering the buttons with a piece of gaffer tape. In recognition of this issue, the most recent of these lenses (the f/4L IS USM model and recent f/2.8L IS USM lenses) uses switches designed to reduce the incidence of accidental switch activation.

text: The most frequently pointed-out problem with this lens is the placement of the IS and AF buttons, that makes them prone to accidental flipping during hand-held shooting. Some photographers solve this simply by covering the buttons with a piece of

text: gaffer tape

text: . In recognition of this issue, the most recent of these lenses (the f/4L IS USM model and recent f/2.8L IS USM lenses) uses switches designed to reduce the incidence of accidental switch activation.

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answers: Myopia

answers: NDQ_018818

answers: is and AF buttons

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: hyperopic

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: TOS can also lead to eye problems and vision loss as a circumstance of vertebral artery compression. Although very rare, if compression of the brain stem is also involved in an individual presentation of TOS, transient blindness may occur while the head is held in certain positions.If left untreated, TOS can lead to neurological deficits as a result of the hypoperfusion and hypometabolism of certain areas of the brain and cerebellum.

text: TOS can also lead to eye problems and vision loss as a circumstance of vertebral artery compression. Although very rare, if compression of the brain stem is also involved in an individual presentation of TOS, transient blindness may occur while the head is held in certain positions.If left untreated, TOS can lead to neurological deficits as a result of the hypoperfusion and hypometabolism of certain areas of the brain and cerebellum.

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answers: 3

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answers: 3

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answers: 0

answers: NDQ_018817

answers: vision loss

answers: NDQ_018818

answers: myopia

answers: NDQ_018819

answers: hyperopia is also called nearsightedness

answers: NDQ_018820

answers: compressed

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Surgery may also be required in individuals with vision problems. Vision problems usually arise due to a lack of space in the eye orbit and skull because of the abnormal bone structure of the face. Decreased space may also lead to abnormal or missing tear ducts and nerve damage. Reconstructive surgery is usually required in order to increase cranial space, correct tear duct stenosis, and/or correct ptosis of the eyelids in order to prevent amblyopia (lazy eye).

text: Surgery may also be required in individuals with vision problems. Vision problems usually arise due to a lack of space in the eye orbit and skull because of the abnormal bone structure of the face. Decreased space may also lead to abnormal or missing

text: tear ducts

text: and nerve damage. Reconstructive surgery is usually required in order to increase cranial space, correct tear duct

text: stenosis

text: , and/or correct

text: ptosis

text: of the eyelids in order to prevent

text: amblyopia

text: (lazy eye).

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answers: 0

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answers: 0

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answers: 2

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: myopia

answers: NDQ_018818

answers: amblyopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: lack of space

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: LCA-Vision is a provider of photorefractive keratectomy in the United States under the LasikPlus brand.  As of October 2010, LCA-Vision Inc. owns and operates 54 LasikPlus fixed-site laser vision correction centers across the United States and Canada. The company performs Custom LASIK, PRK and monovision treatment to correct nearsightedness, farsightedness, astigmatism and reduce the effects of presbyopia. According to the company, one million laser vision correction procedures have been performed at its LasikPlus vision centers since 1991.

text: LCA-Vision is a provider of

text: photorefractive keratectomy

text: in the

text: United States

text: under the LasikPlus brand.  As of October 2010, LCA-Vision Inc. owns and operates 54 LasikPlus fixed-site laser vision correction centers across the United States and Canada. The company performs Custom

text: LASIK

text: PRK

text: and monovision treatment to correct nearsightedness, farsightedness, astigmatism and reduce the effects of presbyopia. According to the company, one million laser vision correction procedures have been performed at its LasikPlus vision centers since 1991.

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answers: 2

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answers: presbyopia

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answer: Yes

answer: Yes

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text: These early glasses had convex lenses that could correct both hyperopia (farsightedness), and the presbyopia that commonly develops as a symptom of aging. It was not until 1604 that Johannes Kepler published the first correct explanation as to why convex and concave lenses could correct presbyopia and myopia.

text: These early glasses had

text: convex lenses

text: that could correct both

text: hyperopia

text: (farsightedness), and the

text: presbyopia

text: that commonly develops as a symptom of

text: aging

text: . It was not until 1604 that

text: Johannes Kepler

text: published the first correct explanation as to why convex and concave lenses could correct presbyopia and

text: myopia

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answer: Yes

answer: Yes

answer: Yes

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answer: 1

text: Quite similarly, it is still unclear what is the mechanism of emmetropization, that is, the mechanism by which the degree of hyperopia (far-sightedness) and myopia change during childhood, such that a farsighted eye tends to become less farsighted and a near-sighted eye tends to become less near-sighted in the course of development.

text: Quite similarly, it is still unclear what is the mechanism of

text: emmetropization

text: , that is, the mechanism by which the degree of

text: hyperopia (far-sightedness)

text: and myopia change during childhood, such that a farsighted eye tends to become less farsighted and a near-sighted eye tends to become less near-sighted in the course of development.

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answers: NDQ_018820

answers: farsighted

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Approximately 14 million Americans suffer from low vision. The prevalence of low vision increases from 1% at age 65 to 4% at age 79, and increases dramatically to 17% after age 80. In addition, the prevalence of low vision is increasing, and depression is becoming a common issue for individuals with low vision.

text: Approximately 14 million Americans suffer from

text: low vision

text: . The prevalence of low vision increases from 1% at age 65 to 4% at age 79, and increases dramatically to 17% after age 80. In addition, the prevalence of low vision is increasing, and depression is becoming a common issue for individuals with low vision.

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answers: low vision

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answers: squished

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: Certain smells can be associated with specific areas and help a person with vision problems to remember a familiar area. This way there is a better chance of recognizing an areas layout in order to navigate themselves through. The same can be said for people as well. Some people have their own special odor that a person with a more trained sense of smell can pick up. A person with an impairment of their vision can use this to recognize people within their vicinity without them saying a word.

text: Certain smells can be associated with specific areas and help a person with vision problems to remember a familiar area. This way there is a better chance of recognizing an areas layout in order to navigate themselves through. The same can be said for people as well. Some people have their own special odor that a person with a more trained sense of smell can pick up. A person with an impairment of their vision can use this to recognize people within their vicinity without them saying a word.

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answers: myopia

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answers: in myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: impaired

answer: No

answer: No

answer: Yes

answer: No

answer: No

answer: 1

text: Poirot instructs her to tell Andersen that she is going to come into a large sum of money that she will leave to the Flock, that she has problems with her lungs, and that Mrs Clegg will soon inherit a large sum from an aunt, more than her present estate. Poirot also asks if she has met a Mr Cole at the sanctuary. Miss Carnaby has and to her he is a very strange man. As if to prove her assertion correct, soon afterwards Mr Cole accosts Miss Carnaby with tales of his strange visions which involve sacrifices, Jehovah, and even Odin. She is saved from further strange tales by the arrival of Mr Lipscombe, the lodge-keeper of the Devonshire estate.

text: Poirot instructs her to tell Andersen that she is going to come into a large sum of money that she will leave to the Flock, that she has problems with her lungs, and that Mrs Clegg will soon inherit a large sum from an aunt, more than her present estate. Poirot also asks if she has met a Mr Cole at the sanctuary. Miss Carnaby has and to her he is a very strange man. As if to prove her assertion correct, soon afterwards Mr Cole accosts Miss Carnaby with tales of his strange visions which involve sacrifices,

text: Jehovah

text: , and even

text: Odin

text: . She is saved from further strange tales by the arrival of Mr Lipscombe, the lodge-keeper of the Devonshire estate.

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answers: farsightedness

answers: NDQ_018818

answers: Poirot

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: squished

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Mild cases are treated with lubricant eye drops or nonsteroidal anti-inflammatory drops. Severe cases threatening vision (corneal exposure or optic nerve compression) are treated with steroids or orbital decompression. In all cases, cessation of smoking is essential. Double vision can be corrected with prism glasses and surgery (the latter only when the process has been stable for a while).

text: Mild cases are treated with lubricant eye drops or nonsteroidal anti-inflammatory drops. Severe cases threatening vision (corneal exposure or optic nerve compression) are treated with steroids or orbital decompression. In all cases, cessation of smoking is essential. Double vision can be corrected with prism glasses and surgery (the latter only when the process has been stable for a while).

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answers: Double vision

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answers: in myopia

answers: NDQ_018819

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answers: NDQ_018820

answers: orbital

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: A problem becomes apparent to actors throughout the levels and domains; the first step involves defining the key parameters of the problem then characterising the existing regime and landscape pressures. Differences in interpretation, perceived pressures, opinions and preference ensues the construction of a plurality of visions and solutions for consideration. A 'basket of objectives' is created which express the shared visions and goals of the actors. The visions outlined are long term in nature most commonly spanning at least one generation if not more and are used to inform short-term objectives. These visions can be expressed in a number of ways; more common forms include the use of pathways, scenarios and blueprints. As an example, if the problem of the unsustainable nature of our oil-dependent nation is presented, visions that may be put forward that constitute a carbon-neutral future include; the hydrogen economy, the all-electric society and the transition to global energy infrastructure to facilitate the maximisation of renewable energy.Although each vision will require different socio-technical changes they will all seek to broadly ensure the same goals are met, for example a low or no carbon economy and a secure and reliable supply.

text: A problem becomes apparent to actors throughout the levels and domains; the first step involves defining the key parameters of the problem then characterising the existing regime and landscape pressures. Differences in interpretation, perceived pressures, opinions and preference ensues the construction of a plurality of visions and solutions for consideration. A 'basket of objectives' is created which express the shared visions and goals of the actors. The visions outlined are long term in nature most commonly spanning at least one generation if not more and are used to inform short-term objectives. These visions can be expressed in a number of ways; more common forms include the use of pathways, scenarios and

text: blueprints

text: . As an example, if the problem of the unsustainable nature of our oil-dependent nation is presented, visions that may be put forward that constitute a

text: carbon-neutral

text: future include; the

text: hydrogen economy

text: , the all-electric society and the transition to global energy infrastructure to facilitate the maximisation of

text: renewable energy

text: .Although each vision will require different socio-technical changes they will all seek to broadly ensure the same goals are met, for example a low or no carbon economy and a secure and reliable supply.

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answers: myopia

answers: NDQ_018818

answers: myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: strabismus

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: A critical question in the debate between proponents of serial and parallel views of reading is how the reader arrives relatively effortlessly at a single coherent understanding of the meaning of text.  From the serial perspective reading is a sort of “surrogate listening”, in which an orderly pattern of inspection delivers the message in the correct order: the problem is the pattern of inspection is usually anything but orderly.  From the parallel perspective the meaning of several words becomes available simultaneously: the problem is how are these competing signals resolved into a single correct meaning?

text: A critical question in the debate between proponents of serial and parallel views of reading is how the reader arrives relatively effortlessly at a single coherent understanding of the meaning of text.  From the serial perspective reading is a sort of “surrogate listening”, in which an orderly pattern of inspection delivers the message in the correct order: the problem is the pattern of inspection is usually anything but orderly.  From the parallel perspective the meaning of several words becomes available simultaneously: the problem is how are these competing signals resolved into a single correct meaning?

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answers: farsightedness

answers: NDQ_018818

answers: orderly

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: anything but orderly

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Benito Daza de Valdes published the third book on optometry in 1623, where he mentioned the use and fitting of eyeglasses. In 1692, William Molyneux wrote a book on optics and lenses where he stated his ideas on myopia and problems related to close-up vision. The scientists Claudius Ptolemy and Johannes Kepler also contributed to the creation of optometry. Kepler discovered how the retina in the eye creates vision. From 1773 until around 1829, Thomas Young discovered the disability of astigmatism and it was George Biddell Airy who designed glasses to correct that problem that included spherocylindrical lens.

text: Benito Daza de Valdes published the third book on optometry in 1623, where he mentioned the use and fitting of eyeglasses. In 1692, William Molyneux wrote a book on optics and

text: lenses

text: where he stated his ideas on

text: myopia

text: and problems related to close-up vision. The scientists Claudius Ptolemy and Johannes Kepler also contributed to the creation of optometry. Kepler discovered how the

text: retina

text: in the eye creates

text: vision

text: . From 1773 until around 1829, Thomas Young discovered the disability of

text: astigmatism

text: and it was George Biddell Airy who designed glasses to correct that problem that included spherocylindrical lens.

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answers: NDQ_018820

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answers: astigmatism

answers: NDQ_018818

answers: close-up

answers: NDQ_018819

answers: myopia

answers: NDQ_018820

answers: close-up

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: Risks are comparable to or safer than ordinary contact lenses, since they are typically worn for much shorter periods (6–8 hours rather than daytime or 24/7) and while asleep rather than while active. They also compare favorably to surgical correction since no surgery is involved, corrections to the eye's shape can be handled over time (surgery corrects vision at a single point in time, but post-operative ongoing changes to eyesight will continue to occur during the patient's lifetime), and it is considered generally safe for younger patients. In addition, Ortho-K is broadly not 'new' from a safety viewpoint; contact lens safety generally speaking is considered to be well understood. However it is important, as with all contact lenses, to maintain good cleaning and hygiene discipline.

text: Risks are comparable to or safer than ordinary contact lenses, since they are typically worn for much shorter periods (6–8 hours rather than daytime or 24/7) and while asleep rather than while active. They also compare favorably to surgical correction since no surgery is involved, corrections to the eye's shape can be handled over time (surgery corrects vision at a single point in time, but post-operative ongoing changes to eyesight will continue to occur during the patient's lifetime), and it is considered generally safe for younger patients. In addition, Ortho-K is broadly not 'new' from a safety viewpoint; contact lens safety generally speaking is considered to be well understood. However it is important, as with all contact lenses, to maintain good cleaning and hygiene discipline.

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text: In the case of myopia, however, some believe that such treatments may also have the long-term effect of exacerbating that refractive error — i.e., making the patient even more nearsighted. This would be due to the very same prescription that is tailored for use at a 12-to-20-foot distance also commonly being used for close-up work as well, thus artificially amplifying the focusing stress that would normally be presented to the accommodation mechanisms of the eye at that distance.

text: In the case of myopia, however, some believe that such treatments may also have the long-term effect of exacerbating that refractive error — i.e., making the patient even more nearsighted. This would be due to the very same prescription that is tailored for use at a 12-to-20-foot distance also commonly being used for close-up work as well, thus artificially amplifying the focusing stress that would normally be presented to the accommodation mechanisms of the eye at that distance.

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text: Such glasses do not take into account the possible need for any astigmatism correction, which will influence both the near and the distance prescription.  The need for a cylindrical component in the otherwise spherical lens surfaces, correctly aligned in angle, is used to correct for astigmatism, and any lack of such correction is a major cause of tiredness and headaches in people doing prolonged close work or reading.  If the wearer has little to no need for the correction of astigmatism, off-the-shelf glasses may work quite well for seeing better during near vision tasks.  But if the person has a need for distance correction, it is less likely that they will be perfectly effective.

text: Such glasses do not take into account the possible need for any astigmatism correction, which will influence both the near and the distance prescription.  The need for a cylindrical component in the otherwise spherical lens surfaces, correctly aligned in angle, is used to correct for astigmatism, and any lack of such correction is a major cause of tiredness and headaches in people doing prolonged close work or reading.  If the wearer has little to no need for the correction of astigmatism, off-the-shelf glasses may work quite well for seeing better during near vision tasks.  But if the person has a need for distance correction, it is less likely that they will be perfectly effective.

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answer: 1

text: Other obstacles were mentioned by Cardinal Walter Kasper, President of the Pontifical Council for the Promotion of Christian Unity, in a talk at a conference of Anglican bishops and laity at St Albans, UK, in 2003. He noted that "a final solution [to recognition of Anglican orders] can be found only in the larger context of full communion in faith, sacramental life and shared apostolic vision". He specifically mentioned obstacles like "lay presidency, the ordination of women, and ethical problems such as abortion and homosexual partnerships." This position (with its emphasis on "doctrinal belief") seems to be in line with the attitude of Orthodoxy toward Anglican orders. Kallistos Ware, for example, notes in his book, The Orthodox Church: "For Orthodoxy, the validity of ordinations does not depend simply on the fulfillment of certain technical conditions (external possession of the apostolic succession; correct form, matter and intention). The Orthodox also ask: What is the sacramental succession and priesthood? How does it understand the eucharistic presence and sacrifice? Only when these questions have been answered can a decision be made about the validity or otherwise of ordination. To isolate the problem of valid orders is to go up a blind alley. Realizing this, Anglicans and Orthodox in their discussions from the 1950s onwards have left the question of valid orders largely to one side, and have concentrated on more substantive and central themes of doctrinal belief."

text: Other obstacles were mentioned by

text: Cardinal Walter Kasper

text: , President of the Pontifical Council for the Promotion of Christian Unity, in a talk at a conference of Anglican bishops and laity at St Albans, UK, in 2003. He noted that "a final solution [to recognition of Anglican orders] can be found only in the larger context of full communion in faith, sacramental life and shared apostolic vision". He specifically mentioned obstacles like "lay presidency, the ordination of women, and ethical problems such as abortion and homosexual partnerships." This position (with its emphasis on "doctrinal belief") seems to be in line with the attitude of Orthodoxy toward Anglican orders.

text: Kallistos Ware

text: , for example, notes in his book, The Orthodox Church: "For Orthodoxy, the validity of ordinations does not depend simply on the fulfillment of certain technical conditions (external possession of the apostolic succession; correct form, matter and intention). The Orthodox also ask: What is the sacramental succession and priesthood? How does it understand the eucharistic presence and sacrifice? Only when these questions have been answered can a decision be made about the validity or otherwise of ordination. To isolate the problem of valid orders is to go up a blind alley. Realizing this, Anglicans and Orthodox in their discussions from the 1950s onwards have left the question of valid orders largely to one side, and have concentrated on more substantive and central themes of doctrinal belief."

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answers: To isolate the problem of valid orders

answers: NDQ_018819

answers: shared apostolic vision

answers: NDQ_018820

answers: blind

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: In the 1960s, the Association had expanded its vision on food protection from milk safety. As the President of the Association pointed out in 1960: “Today, we sanitarians must be equipped to deal with problems extending throughout the entire range of environmental health. We must solve problems of waste disposal, insect and rodent control, air pollution, housing, radiological poisoning and many others. Additionally, with more Americans eating out more often than ever before, the food service industry has become an area of responsibility such as would have been impossible for our founding Members to imagine. Recently the packaging of prepared foods of the ‘heat and eat’ variety has developed as a rapidly expanding industry that poses new sanitation problems for you to solve.” The name of the association was changed after a mail ballot in members at large in response to the expanded scope of the Association, the International Association of Milk, Food and Environmental Sanitarians (IAMFES).

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answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: The fact that the image was expanded horizontally when projected meant that there could be visible graininess and brightness problems. To combat this, larger film formats were developed (initially a too-costly 55 mm  for Carousel and The King and I) and then abandoned (both films were eventually reduction printed at 35 mm, although the aspect ratio was kept at 2.55:1).  Later Fox re-released The King and I in the 65/70 mm format. The initial problems with grain and brightness were eventually reduced thanks to improvements in film stock and lenses.

text: The fact that the image was expanded horizontally when projected meant that there could be visible graininess and brightness problems. To combat this, larger film formats were developed (initially a too-costly 55 mm  for

text: Carousel

text: and

text: The King and I

text: ) and then abandoned (both films were eventually reduction printed at 35 mm, although the aspect ratio was kept at 2.55:1).  Later Fox re-released The King and I in the

text: 65/70 mm

text: format. The initial problems with grain and brightness were eventually reduced thanks to improvements in

text: film stock

text: and lenses.

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answers: NDQ_018820

answers: expanded horizontally

answer: No

answer: No

answer: No

answer: No

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answer: 1

text: His nickname/tactical callsign was "Fang." Having originally been designated as an Air Force Navigator, he was given a vision waiver after Vietnam (Feinstein wore glasses to correct mild nearsightedness to 20/20), sent to Undergraduate Pilot Training and redesignated as an Air Force pilot in the fighter community.

text: His

text: nickname/tactical callsign

text: was "Fang." Having originally been designated as an

text: Air Force Navigator

text: , he was given a vision waiver after Vietnam (Feinstein wore glasses to correct mild nearsightedness to 20/20), sent to Undergraduate Pilot Training and redesignated as an Air Force pilot in the

text: fighter

text: community.

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answers: nearsightedness

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answers: 20/20

answers: NDQ_018820

answers: nearsighted

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: 1

text: On 19 April 2016, Niemeyer dissented in part from a 4th Circuit ruling (G. G. v. Gloucester County School Board) in an appeal from the US District Court for the Eastern District of Virginia at Newport News where the majority of the 4th Circuit panel reversed the district court's dismissal of a transgender boy's claims under Title IX.  Niemeyer's dissent states: "This unprecedented holding overrules custom, culture, and the very demands inherent in human nature for privacy and safety"; "More particularly, it also misconstrues the clear language of Title IX and its regulations"; and "And finally, it reaches an unworkable and illogical result". The Majority rejected Niemeyer's assertions, concluding that "the record is devoid of any evidence tending to show that [the plaintiff's] use of the boys’ restroom creates a safety issue." Further, the Majority rejected Niemeyer's "suggestion that . . . the enforcement of separate restroom facilities [would be] impossible because it 'would require schools to assume gender identity based on appearances, social expectations, or explicit declarations of identity.' Accepting [such a] position would equally require the school to assume 'biological sex' based on 'appearances, social expectations, or  explicit declarations of [biological  sex].' Certainly, no one is suggesting mandatory verification of the 'correct' genitalia before  admittance to a restroom. The Department [of Justices]’s vision of sex-segregated restrooms which takes account of gender identity presents no greater 'impossibility of enforcement'  problem  than  does  the  [dissent's]  'biological  gender' vision of sex-segregated restrooms."

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answers: the 'correct' genitalia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: 'correct'

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Molly's metabolism, sensory input, and reflexes are artificially heightened by means of electronic implants and other advanced medical procedures. She has razor-sharp retractable blades underneath her fingernails, each double-edged and four centimeters in length. Appearing at first glance to be wearing mirrored sunglasses, Molly has in fact had her eye sockets sealed with vision-enhancing mirrored lenses, installed by the skilled black-market surgeons of Chiba City. To accommodate the inset lenses her tear ducts have been re-routed to her mouth; on the very rare occasions she cries, she either spits out or swallows the tears. She never lets others touch the lenses as it would leave messy fingerprints requiring extra cleaning.

text: Molly's metabolism, sensory input, and reflexes are artificially heightened by means of electronic implants and other advanced medical procedures. She has razor-sharp retractable blades underneath her fingernails, each double-edged and four centimeters in length. Appearing at first glance to be wearing mirrored sunglasses, Molly has in fact had her eye sockets sealed with vision-enhancing mirrored lenses, installed by the skilled black-market surgeons of

text: Chiba City

text: . To accommodate the inset lenses her tear ducts have been re-routed to her mouth; on the very rare occasions she cries, she either spits out or swallows the tears. She never lets others touch the lenses as it would leave messy fingerprints requiring extra cleaning.

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answers: NDQ_018820

answers: inset

answer: Yes

answer: Yes

answer: No

answer: Yes

answer: No

answer: 1

text: The problem with aspheric lenses is that they are a broad category.  A lens is made of two curved surfaces, and an aspheric lens is a lens where one or both of those surfaces is not spherical.  Further research and development is being conducted to determine if the mathematical and theoretical benefits of aspheric lenses can actually lead to better vision correction.

text: The problem with aspheric lenses is that they are a broad category.  A lens is made of two curved surfaces, and an aspheric lens is a lens where one or both of those surfaces is not spherical.  Further research and development is being conducted to determine if the mathematical and theoretical benefits of aspheric lenses can actually lead to better vision correction.

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answers: myopia is also called farsightedness

answers: NDQ_018818

answers: on the curved surface

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: not spherical

answer: Yes

answer: Yes

answer: No

answer: No

answer: No

answer: 1

text: Sowell argues that the unconstrained vision relies heavily on the belief that human nature is essentially good. Those with an unconstrained vision distrust decentralized processes and are impatient with large institutions and systemic processes that constrain human action. They believe there is an ideal solution to every problem, and that compromise is never acceptable. Collateral damage is merely the price of moving forward on the road to perfection.  Sowell often refers to them as "the self anointed." Ultimately they believe that man is morally perfectible. Because of this, they believe that there exist some people who are further along the path of moral development, have overcome self-interest and are immune to the influence of power and therefore can act as surrogate decision-makers for the rest of society.

text: Sowell argues that the unconstrained vision relies heavily on the belief that

text: human nature

text: is essentially good. Those with an unconstrained vision distrust decentralized processes and are impatient with large institutions and systemic processes that constrain human action. They believe there is an ideal solution to every problem, and that compromise is never acceptable. Collateral damage is merely the price of moving forward on the road to perfection.  Sowell often refers to them as "the self anointed." Ultimately they believe that man is morally perfectible. Because of this, they believe that there exist some people who are further along the path of moral development, have overcome self-interest and are immune to the influence of power and therefore can act as surrogate decision-makers for the rest of society.

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answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Over the counter glasses are available without a prescription.  They are used to lessen the focusing burden of near work and, in some cases, mild farsightedness (hyperopia).  While these "magnifiers" or "ready readers" as they are often called do indeed make the image of the viewed object bigger, the main advantage comes from the power of the lens.  Over the counter readers are spherical corrective lenses of varying powers (commonly +1.00 D to +4.00 D).  These lenses bend light coming from near objects making it more similar to light coming from distant objects.

text: Over the counter glasses are available without a prescription.  They are used to lessen the focusing burden of near work and, in some cases, mild farsightedness (

text: hyperopia

text: ).  While these "magnifiers" or "ready readers" as they are often called do indeed make the image of the viewed object bigger, the main advantage comes from the power of the lens.  Over the counter readers are spherical corrective lenses of varying powers (commonly +1.00 D to +4.00 D).  These lenses bend light coming from near objects making it more similar to light coming from distant objects.

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answers: NDQ_018820

answers: farsighted

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: Because of diabetes, McGowan started wearing prescription lenses to improve his vision in low-light conditions.

text: Because of

text: diabetes

text: , McGowan started wearing prescription lenses to improve his vision in low-light conditions.

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answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: unbalanced

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: Unlike the fluid in the frontal parts of the eye (aqueous humour) which is continuously replenished, the gel in the vitreous chamber is stagnant. Therefore, if blood, cells or other byproducts of inflammation get into the vitreous, they will remain there unless removed surgically.  These are known as floaters. If the vitreous pulls away from the retina, it is known as a vitreous detachment. As the human body ages, the vitreous often liquefies and may collapse. This is more likely to occur, and occurs much earlier, in eyes that are nearsighted (myopia). It can also occur after injuries to the eye or inflammation in the eye (uveitis).

text: Unlike the fluid in the frontal parts of the eye (

text: aqueous humour

text: ) which is continuously replenished, the gel in the vitreous chamber is stagnant. Therefore, if blood, cells or other byproducts of inflammation get into the vitreous, they will remain there unless

text: removed surgically

text: .  These are known as

text: floater

text: s. If the vitreous pulls away from the retina, it is known as a

text: vitreous detachment

text: . As the human body ages, the vitreous often liquefies and may collapse. This is more likely to occur, and occurs much earlier, in eyes that are

text: nearsighted

text: (myopia). It can also occur after injuries to the eye or inflammation in the eye (

text: uveitis

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text: In 1991, shortly after the first laser to perform laser vision correction procedures in Canada was approved, LCA-Vision began applying its laser operating capability to the field of refractive eye surgery, particularly to Photorefractive Keratectomy (PRK), a procedure in which lasers are used to correct nearsightedness and other eye conditions. In 1995, the Food and Drug Administration (FDA) approved PRK technology in the United States. In December 1995, LCA-Vision opened its first Laser Vision Correction center in the United States at its corporate headquarters in Cincinnati. Founded and chaired by Stephen Joffe, Joffe was a practicing general surgeon and tenured, full professor at the University of Cincinnati Academic Health Center. An early advocate of applying laser technology in medical disciplines, he founded a laser technology device company and later, a laser surgery management business with hospitals and medical centers throughout the U.S.

text: In 1991, shortly after the first laser to perform laser vision correction procedures in Canada was approved, LCA-Vision began applying its laser operating capability to the field of

text: refractive eye surgery

text: , particularly to Photorefractive Keratectomy (PRK), a procedure in which lasers are used to correct nearsightedness and other eye conditions. In 1995, the

text: Food and Drug Administration

text: (FDA) approved PRK technology in the United States. In December 1995, LCA-Vision opened its first Laser Vision Correction center in the United States at its corporate headquarters in Cincinnati. Founded and chaired by Stephen Joffe, Joffe was a practicing general surgeon and tenured, full professor at the

entity_name: University of Cincinnati Academic Health Center

text: University of Cincinnati Academic Health Center

text: . An early advocate of applying laser technology in medical disciplines, he founded a laser technology device company and later, a laser surgery management business with hospitals and medical centers throughout the U.S.

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text: The dolphin eye is relatively small for its size, yet they do retain a good degree of eyesight. As well as this, the eyes of a dolphin are placed on the sides of its head, so their vision consists of two fields, rather than a binocular view like humans have. When dolphins surface, their lens and cornea correct the nearsightedness that results from the refraction of light; they contain both rod and cone cells, meaning they can see in both dim and bright light, but they have far more rod cells than they do cone cells. Dolphins do, however, lack short wavelength sensitive visual pigments in their cone cells indicating a more limited capacity for color vision than most mammals. Most dolphins have slightly flattened eyeballs, enlarged pupils (which shrink as they surface to prevent damage), slightly flattened corneas and a  tapetum lucidum; these adaptations allow for large amounts of light to pass through the eye and, therefore, a very clear image of the surrounding area. They also have glands on the eyelids and outer corneal layer that act as protection for the cornea.

text: The dolphin eye is relatively small for its size, yet they do retain a good degree of eyesight. As well as this, the eyes of a dolphin are placed on the sides of its head, so their vision consists of two fields, rather than a binocular view like humans have. When dolphins surface, their lens and cornea correct the nearsightedness that results from the refraction of light; they contain both

text: rod

text: and

text: cone

text: cells, meaning they can see in both dim and bright light, but they have far more rod cells than they do cone cells. Dolphins do, however, lack short wavelength sensitive visual pigments in their cone cells indicating a more limited capacity for color vision than most mammals. Most dolphins have slightly flattened eyeballs, enlarged pupils (which shrink as they surface to prevent damage), slightly flattened corneas and a

text: tapetum lucidum

text: ; these adaptations allow for large amounts of light to pass through the eye and, therefore, a very clear image of the surrounding area. They also have glands on the eyelids and

text: outer corneal layer

text: that act as protection for the cornea.

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text: In 2004 the American Academy of Ophthalmology (AAO) published a review of various research regarding "visual training", which consisted of "eye exercises, muscle relaxation techniques, biofeedback, eye patches, or eye massages", "alone or in combinations". No evidence was found that such techniques could objectively benefit eyesight, though some studies noted changes, both positive and negative, in the visual acuity of nearsighted subjects as measured by a Snellen chart. In some cases noted improvements were maintained at subsequent follow-ups. However, these results were not seen as actual reversals of nearsightedness, and were attributed instead to factors such as "improvements in interpreting blurred images, changes in mood or motivation, creation of an artificial contact lens by tear film changes, or a pinhole effect from miosis of the pupil."

text: In 2004 the

text: American Academy of Ophthalmology

text: (AAO) published a review of various research regarding "visual training", which consisted of "eye exercises, muscle relaxation techniques, biofeedback, eye patches, or eye massages", "alone or in combinations". No evidence was found that such techniques could

text: objectively

text: benefit eyesight, though some studies noted changes, both positive and negative, in the

text: visual acuity

text: of nearsighted subjects as measured by a

text: Snellen chart

text: . In some cases noted improvements were maintained at subsequent follow-ups. However, these results were not seen as actual reversals of nearsightedness, and were attributed instead to factors such as "improvements in interpreting blurred images, changes in mood or motivation, creation of an artificial contact lens by tear film changes, or a pinhole effect from

text: miosis

text: of the pupil."

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answers: 2

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answers: NDQ_018817

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answers: 4

answers: NDQ_018820

answers: 0

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answers: nearsighted

answers: NDQ_018818

answers: blurred

answers: NDQ_018819

answers: nearsightedness

answers: NDQ_018820

answers: nearsighted

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: People in this class can have problems with their gait. There are a number of different causes for these issues and suggested ways to modify them. For a gait that has abrupt heel contact, the cause can be excessive heel lever. This can be fixed by realigning their prosthetic foot. For jerky knee motions, the cause could be a loose socket in the knee or inadequate suspension. In that case, the socket might need replacing or they may need to realign the prosthesis. If they have prolonged heel contact, the cause could be problems with the heel lever in their prosthesis or a worn heel. Increasing heel stiffness or realigning the prosthesis corrects these issues. In some cases, prolonged heel contact or knees remaining fulling extended is a problem with training prosthesis use. Foot drag - often caused by an ill-fitting prosthesis - can be corrected by shortening the length of the prosthesis. Uneven length strides can be a result of problems with hip flexion or insecurity about their walk, both of which can be corrected by physical therapy.

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

answers: NDQ_018819

answers: 0

answers: NDQ_018820

answers: 0

answers: NDQ_018817

answers: Myopia is also called farsightedness

answers: NDQ_018818

answers: Myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: worn

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: The problem with Gracie's visions is that she does not know exactly what she is seeing. Sometimes she sees the past, sometimes the present, and sometimes she misinterprets her visions completely. Assisted by her cousin Diego, Gracie follows her visions in hopes of finding Emily. After a few false starts and a little research, she finds Emily's trail and is taken captive by Emily's kidnapper. Trapped in a guarded and gloomy house, Gracie begins to see the dark childhood of her kidnapper and his kins in unstoppable visions, the kidnapper is a madman who regrets not saving his ill sister Nell. This leads to the house being set ablaze by his enraged father and most of his brothers and sisters are killed in the fire including his dear sister Lizbet. This disillusioned madman wants to end this properly this time and so plans to die with his foster 'family'.

text: The problem with Gracie's visions is that she does not know exactly what she is seeing. Sometimes she sees the past, sometimes the present, and sometimes she misinterprets her visions completely. Assisted by her cousin Diego, Gracie follows her visions in hopes of finding Emily. After a few false starts and a little research, she finds Emily's trail and is taken captive by Emily's kidnapper. Trapped in a guarded and gloomy house, Gracie begins to see the dark childhood of her kidnapper and his kins in unstoppable visions, the kidnapper is a madman who regrets not saving his ill sister Nell. This leads to the house being set ablaze by his enraged father and most of his brothers and sisters are killed in the fire including his dear sister Lizbet. This disillusioned madman wants to end this properly this time and so plans to die with his foster 'family'.

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

answers: tqa2:L_1064/T_4975/2b0851f93b624e68d57d25335e6ac0f3

answers: 0

answers: tqa2:L_1064/T_4975/a3a4ee34a1f73e2a15163ae125fdf1a6

answers: 0

answers: tqa2:L_1064/T_4975/53b4829e9f3a8d1b51540e800c3c5f75

answers: 0

answers: tqa2:L_1064/T_4975/53688ccb0cba9777054ffd973bff7b4e

answers: 0

answers: tqa2:L_1064/T_4975/4d02858de7375bc6a65b818f531e3f5c

answers: 0

answers: tqa2:L_1064/T_4975/b71ed56e994ef0cdc1381e723bb9b4bd

answers: 0

answers: tqa2:L_1064/T_4975/99175ecae6de45b664e42f93e1a6c05d

answers: 0

answers: tqa2:L_1064/T_4975/54583403e19bc709bee35cd73a5eaf05

answers: 0

answers: tqa2:L_1064/T_4975/7ae3a5c029fdba7c04cc335a7dae28a0

answers: 0

answers: tqa2:L_1064/T_4975/9281e063c2e2f50cb5f317c62cd46086

answers: 0

answers: NDQ_018817

answers: 4

answers: NDQ_018818

answers: 0

answers: NDQ_018819

answers: 4

answers: NDQ_018820

answers: 0

answers: NDQ_018817

answers: myopia

answers: NDQ_018818

answers: Gracie begins to see the dark childhood

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: not in focus

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Problems and decay of sensory neurons associated with vision lead to disorders such as:

text: Problems and decay of sensory neurons associated with vision lead to disorders such as:

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answers: 0

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answers: 0

answers: tqa2:L_1064/T_4973/060777c3037f741dae3ae51116b2023f

answers: 0

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answers: 0

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answers: 0

answers: tqa2:L_1064/T_4973/b03e611889d31b7563d61d4cd77e932d

answers: 0

answers: tqa2:L_1064/T_4973/c3777bba7ab1cd27d111cc3f64188a81

answers: 0

answers: tqa2:L_1064/T_4973/7c6c29aeeee13beea3f3bb01a6e2aa8b

answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

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answers: 0

answers: tqa2:L_1064/T_4974/9bacc41c11fe8bd0cca21f1f5ffd3c85

answers: 0

answers: tqa2:L_1064/T_4974/327dc81470dcd3abea1a5520ab6442e4

answers: 0

answers: tqa2:L_1064/T_4974/255c3a329eca0b3770d2e8127a1dbaf6

answers: 0

answers: tqa2:L_1064/T_4974/4b764b7e554817ab52326505530f5edb

answers: 0

answers: tqa2:L_1064/T_4975/4f7845d33ab76db954e431188cadc497

answers: 0

answers: tqa2:L_1064/T_4975/bbc48f4aaa46a6700bb856b4836f7fcc

answers: 0

answers: tqa2:L_1064/T_4975/24aeb692bbf3e3d5d19fd9e56f10f931

answers: 0

answers: tqa2:L_1064/T_4975/1b6d5d109428c3420e66031637b7d362

answers: 0

answers: tqa2:L_1064/T_4975/abeb05e4687f85388b8bbd6da33572db

answers: 0

answers: tqa2:L_1064/T_4975/2b0851f93b624e68d57d25335e6ac0f3

answers: 0

answers: tqa2:L_1064/T_4975/a3a4ee34a1f73e2a15163ae125fdf1a6

answers: 0

answers: tqa2:L_1064/T_4975/53b4829e9f3a8d1b51540e800c3c5f75

answers: 0

answers: tqa2:L_1064/T_4975/53688ccb0cba9777054ffd973bff7b4e

answers: 0

answers: tqa2:L_1064/T_4975/4d02858de7375bc6a65b818f531e3f5c

answers: 0

answers: tqa2:L_1064/T_4975/b71ed56e994ef0cdc1381e723bb9b4bd

answers: 0

answers: tqa2:L_1064/T_4975/99175ecae6de45b664e42f93e1a6c05d

answers: 0

answers: tqa2:L_1064/T_4975/54583403e19bc709bee35cd73a5eaf05

answers: 0

answers: tqa2:L_1064/T_4975/7ae3a5c029fdba7c04cc335a7dae28a0

answers: 0

answers: tqa2:L_1064/T_4975/9281e063c2e2f50cb5f317c62cd46086

answers: 0

answers: NDQ_018817

answers: 3

answers: NDQ_018818

answers: 0

answers: NDQ_018819

answers: 3

answers: NDQ_018820

answers: 0

answers: NDQ_018817

answers: myopia

answers: NDQ_018818

answers: Myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: hyperopia

answer: No

answer: No

answer: Yes

answer: No

answer: No

answer: 1

text: The terms "myopia" and "myopic" (or the common terms "short-sightedness" or "short-sighted", respectively) have been used metaphorically to refer to cognitive thinking and decision making that is narrow in scope or lacking in foresight or in concern for wider interests or for longer-term consequences. It is often used to describe a decision that may be beneficial in the present, but detrimental in the future, or a viewpoint that fails to consider anything outside a very narrow and limited range. Hyperopia, the biological opposite of myopia, may also be used metaphorically for a value system or motivation that exhibits "farsighted" or possibly visionary thinking and behavior; that is, emphasizing long-term interests at the apparent expense of near-term benefit.

text: The terms "myopia" and "myopic" (or the common terms "short-sightedness" or "short-sighted", respectively) have been used

text: metaphor

text: ically to refer to cognitive thinking and decision making that is narrow in scope or lacking in foresight or in concern for wider interests or for longer-term consequences. It is often used to describe a decision that may be beneficial in the present, but detrimental in the future, or a viewpoint that fails to consider anything outside a very narrow and limited range.

text: Hyperopia

text: , the biological opposite of myopia, may also be used metaphorically for a

text: value system

text: or

text: motivation

text: that exhibits "farsighted" or possibly

text: visionary

text: thinking and behavior; that is, emphasizing long-term interests at the apparent expense of near-term benefit.

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answers: short-sightedness

answers: NDQ_018818

answers: narrow and limited range

answers: NDQ_018819

answers: short-sightedness

answers: NDQ_018820

answers: farsighted

answer: No

answer: No

answer: No

answer: No

answer: Yes

answer: 1

text: Assuming that a problem exists, many have offered suggestions for narrowing the gap and correcting the problems arising from it. In general, those suggestions are along three lines. The first is that the military must reach out to the civilian world. Given the essentially universal agreement that civilians must control the military, the duty falls upon the military to find ways to talk to civilians, not the other way around. The second is that civilians must articulate a clear vision of what they expect in terms of the military mission. And the final suggestion is that the most practical and effective means of bringing about dialogue and understanding is to be bilateral education, in which both military and civilian elites would jointly attend specialized schools. Such schooling would emphasize military-strategic thinking, American history and political philosophy, military ethics, and the proper relationship between civil and military authority.

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answers: farsightedness

answers: NDQ_018818

answers: myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: strabismus

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Thus, Yakus held that an administrative agency could "save" an otherwise unconstitutional delegation of power through a narrowing construction that constrains the agency's own discretion.  This would become a key principle in American constitutional law and would be followed by lower courts in striking down challenges to laws based on the nondelegation doctrine for the next fifty years.  This Yakus principle was logically flawed however: how could an administrative agency itself cure a problem of delegation?  If the problem of delegation is one of excessive legislative power transferred to the executive branch, then the actual delegation problem happens at the time of the passage of the statute—the act of an executive agency limiting that power is too late and does not correct the problem (it really only limits the problem).  As some say, allowing the agency to correct a delegation problem is liking locking the barn doors after all the horses have already escaped.

text: Thus, Yakus held that an administrative agency could "save" an otherwise unconstitutional delegation of power through a narrowing construction that constrains the agency's own discretion.  This would become a key principle in American constitutional law and would be followed by lower courts in striking down challenges to laws based on the

text: nondelegation doctrine

text: for the next fifty years.  This Yakus principle was logically flawed however: how could an administrative agency itself cure a problem of delegation?  If the problem of delegation is one of excessive legislative power transferred to the executive branch, then the actual delegation problem happens at the time of the passage of the statute—the act of an executive agency limiting that power is too late and does not correct the problem (it really only limits the problem).  As some say, allowing the agency to correct a delegation problem is liking locking the barn doors after all the horses have already escaped.

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answers: Myopia is also called farsightedness

answers: NDQ_018818

answers: Yakus

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: strabismus

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: St. Mary’s Educational and cultural society, a charitable organization was registered in 1974, with a view to render its service in Educational and social service . To begin with, the same year, St. Mary’s Residential Central School was founded at eminent educationist, a person with a vision and farsightedness .He followed the footsteps of his brother, the late Chev.T.Thomas, the founder of St.Mary’s group of Schools and colleges in Chennai.

text: St. Mary’s Educational and cultural society, a charitable organization was registered in 1974, with a view to render its service in Educational and social service . To begin with, the same year, St. Mary’s Residential Central School was founded at eminent educationist, a person with a vision and farsightedness .He followed the footsteps of his brother, the late Chev.T.Thomas, the founder of St.Mary’s group of Schools and colleges in Chennai.

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answer: Yes

answer: No

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text: People choose to wear CLs for many reasons.  Aesthetics and cosmetics are the main motivating factors for people who want to avoid wearing glasses or to change the appearance of their eyes. Others wear CLs for functional or optical reasons. When compared with spectacles, CLs typically provide better peripheral vision, and do not collect moisture (from rain, snow, condensation etc.) or perspiration; this makes them ideal for sports and other outdoor activities. CL wearers can also wear sunglasses, goggles, or other eyewear of their choice without having to fit them with prescription lenses or worry about compatibility with glasses. Additionally, there are conditions such as keratoconus and aniseikonia that are typically corrected better with CLs than with glasses.

text: People choose to wear CLs for many reasons.  Aesthetics and cosmetics are the main motivating factors for people who want to avoid wearing

text: glasses

text: or to change the appearance of their eyes. Others wear CLs for functional or optical reasons. When compared with spectacles, CLs typically provide better peripheral vision, and do not collect moisture (from rain, snow, condensation etc.) or perspiration; this makes them ideal for sports and other outdoor activities. CL wearers can also wear sunglasses, goggles, or other eyewear of their choice without having to fit them with prescription lenses or worry about compatibility with glasses. Additionally, there are conditions such as

text: keratoconus

text: and

text: aniseikonia

text: that are typically corrected better with CLs than with glasses.

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answers: CLs typically provide better peripheral vision

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answers: peripheral vision

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answers: concave

answer: No

answer: No

answer: No

answer: No

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text: In the present day, one man had started to experience dreams and visions of the past. He attempted to take medicine to stop it, thinking that this was a medical problem, but the medicine was ineffective; something larger was at play here. The man decided to find a shaman to find out what the problem was, what these dreams and visions meant, and to cure him of them. However, the shaman told the man of the ancient stories of a battle 30,000 years ago between a great hero and the two Sisters of Chaos - one who controls Light from the Sun, and one who controls Darkness from the Moon. The Sisters were imprisoned after the battle, but the hero had perished in the process. The shaman informed the man that he was the hero's reincarnation, and that the Sisters of Chaos have apparently escaped their imprisonment. This man was now the only one who could stop them, and so he went forth on the journey.

text: In the present day, one man had started to experience dreams and visions of the past. He attempted to take medicine to stop it, thinking that this was a medical problem, but the medicine was ineffective; something larger was at play here. The man decided to find a

text: shaman

text: to find out what the problem was, what these dreams and visions meant, and to cure him of them. However, the shaman told the man of the ancient stories of a battle 30,000 years ago between a great hero and the two Sisters of

text: Chaos

text: - one who controls Light from the Sun, and one who controls Darkness from the Moon. The Sisters were imprisoned after the battle, but the hero had perished in the process. The shaman informed the man that he was the hero's

text: reincarnation

text: , and that the Sisters of Chaos have apparently escaped their imprisonment. This man was now the only one who could stop them, and so he went forth on the journey.

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answer: No

answer: No

answer: No

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text: Bielschowsky's original case was corrected by providing full optical correction to the underlying vision problem.

text: Bielschowsky's original case was corrected by providing full optical correction to the underlying vision problem.

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answers: myopia

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answers: Myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: unbalanced

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: In 2008, Specsavers commissioned an advert starring the characters of Virgil Tracy and the Hood to promote its new "Reaction" varifocal lenses. The mini-adventure sees Virgil being pursued by the Hood (both of them wearing jetpacks) over mountainous terrain. When Virgil emerges from a tunnel into the dazzling sunshine, his Specsavers lenses immediately darken to protect his vision; the Hood is not so fortunate and, blinded by the light, crashes into one of the mountains, his jetpack exploding. The advert was filmed in London over five days using techniques similar to those employed by the original crew. Jan King, who joined AP Films for Captain Scarlet and the Mysterons, returned as puppet operator for the filming of the scene, which was heavily reliant on greenscreen chroma key compositing for the inclusion of the mountainous backgrounds. He notes that the advertisement used "ordinary carpet thread for the strings, because [the studio] wanted the strings to be seen rather than not seen."

text: In 2008,

text: Specsavers

text: commissioned an advert starring the characters of Virgil Tracy and the Hood to promote its new "Reaction"

text: varifocal

text: lenses. The mini-adventure sees Virgil being pursued by the Hood (both of them wearing jetpacks) over mountainous terrain. When Virgil emerges from a tunnel into the dazzling sunshine, his Specsavers lenses immediately darken to protect his vision; the Hood is not so fortunate and, blinded by the light, crashes into one of the mountains, his jetpack exploding. The advert was filmed in London over five days using techniques similar to those employed by the original crew. Jan King, who joined AP Films for Captain Scarlet and the Mysterons, returned as puppet operator for the filming of the scene, which was heavily reliant on greenscreen

text: chroma key

text: compositing for the inclusion of the mountainous backgrounds. He notes that the advertisement used "ordinary carpet thread for the strings, because [the studio] wanted the strings to be seen rather than not seen."

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answers: varifocal lenses

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answers: blinded

answer: No

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: Emmetropia (from Greek emmetros, "well-proportioned" or "fitting", + -opia) describes the state of vision where a faraway object at infinity is in sharp focus with the eye lens in a neutral or relaxed state. This condition of the normal eye is achieved when the refractive power of the cornea and the axial length of the eye balance out, which focuses rays exactly on the retina, resulting in perfect vision. A human eye in a state of emmetropia requires no corrective lenses; the vision scores well on a visual acuity test (such as an eye chart test). For example, on a Snellen chart test, emmetropic eyes score at "6/6"(m) or "20/20"(ft) vision, whereas myopic (near-sighted) eyes might score at 20/40 and hyperopic (far-sighted) eyes might score at 20/15.

text: Emmetropia (from Greek emmetros, "well-proportioned" or "fitting", +

text: -opia

text: ) describes the state of

text: vision

text: where a faraway object at

text: infinity

text: is in sharp

text: focus

text: with the

text: eye lens

text: in a neutral or relaxed state. This condition of the normal

text: eye

text: is achieved when the

text: refractive power

text: of the

text: cornea

text: and the axial length of the eye balance out, which focuses

text: rays

text: exactly on the

text: retina

text: , resulting in perfect vision. A

text: human eye

text: in a state of emmetropia requires no

text: corrective lens

text: es; the vision scores well on a

text: visual acuity

text: test (such as an

text: eye chart

text: test). For example, on a

text: Snellen chart

text: test, emmetropic eyes score at

text: "6/6"(m) or "20/20"(ft) vision

text: , whereas

text: myopic

text: (near-sighted) eyes might score at 20/40 and

text: hyperopic

text: (far-sighted) eyes might score at 20/15.

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answers: hyperopic

answers: NDQ_018818

answers: on the retina

answers: NDQ_018819

answers: myopic

answers: NDQ_018820

answers: far-sighted

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: The definition of visual impairment is reduced vision not corrected by glasses or contact lenses. The World Health Organization uses the following classifications of visual impairment. When the vision in the better eye with best possible glasses correction is:

text: The definition of visual impairment is reduced vision not corrected by

text: glasses

text: or

text: contact lens

text: es. The World Health Organization uses the following classifications of visual impairment. When the vision in the better eye with best possible glasses correction is:

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answers: uncorrected

answer: No

answer: No

answer: Yes

answer: No

answer: No

answer: 1

text: Older patients may have certain conditions that increase their chance of nail and foot problems.  Aging itself can result in nailbed changes to fingernails and toenails. Patients may have poor vision, poor coordination, or not be able to bend over to take care of their nails.

text: Older patients may have certain conditions that increase their chance of nail and foot problems.  Aging itself can result in nailbed changes to fingernails and toenails. Patients may have poor vision, poor coordination, or not be able to bend over to take care of their nails.

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answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Principal photography of Wired commenced in May 1988 and finished in the autumn of that year. The film was completed by the end of 1988; however, it did not receive a theatrical release until August 1989. The producers of Wired had problems finding a distributor for the film, as many of the major studios refused to distribute it. Several independent studios such as New Visions (then headed by Taylor Hackford) backed away from it. Atlantic Entertainment was about to distribute Wired, but financial problems prevented that from happening, so Taurus Entertainment agreed to distribute the film.

text: Principal photography of Wired commenced in May 1988 and finished in the autumn of that year. The film was completed by the end of 1988; however, it did not receive a theatrical release until August 1989. The producers of Wired had problems finding a distributor for the film, as many of the major studios refused to distribute it. Several independent studios such as New Visions (then headed by

text: Taylor Hackford

text: ) backed away from it. Atlantic Entertainment was about to distribute Wired, but financial problems prevented that from happening, so Taurus Entertainment agreed to distribute the film.

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answers: hyperopic

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: During an interview with ABC News, apl.de.ap said that he was born with a condition called nystagmus, which is characterized by an involuntary movement of the eyes that limits vision. The interview showed apl.de.ap undergoing an eye surgery by Beverly Hills eye surgeon Brian Boxer Wachler to implant artificial lenses into his eyes to correct nearsightedness and his nystagmus.

text: During an interview with

text: ABC News

text: , apl.de.ap said that he was born with a condition called

text: nystagmus

text: , which is characterized by an involuntary movement of the eyes that limits vision. The interview showed apl.de.ap undergoing an eye surgery by Beverly Hills eye surgeon Brian Boxer Wachler to implant artificial lenses into his eyes to correct

text: nearsightedness

text: and his nystagmus.

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answers: nearsightedness

answers: NDQ_018818

answers: nearsightedness

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: nearsightedness

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: 1

text: In 2004, Osmond was in Missouri recording his TV show, Jimmy Osmond's American Jukebox, when he was suddenly overcome with a blinding headache. "It came on so fast and I could hardly see - it was as if I had tunnel vision," he recalls. "Somehow, I managed to get to the end of the show. How I drove home I have no idea and I should not have done it because I couldn't even see the lines in the middle of the road, but I was desperate to get back to my family and go to bed... The following morning I tried to get up, but felt so dizzy that I fell over. My vision was still bad and this terrible headache was gnawing away right at the base of my skull." He thought it was a severe migraine, but his wife drove him to the local hospital where doctors advised him to have a CT scan of his brain. The tests revealed he had suffered a stroke, but it caused no permanent damage. He also learned that he had a Patent Foramen Ovale (PFO), a hole in the septal wall of his heart, which was later surgically corrected. Several Osmond family members also have this congenital problem.

text: In 2004, Osmond was in Missouri recording his TV show, Jimmy Osmond's American Jukebox, when he was suddenly overcome with a blinding headache. "It came on so fast and I could hardly see - it was as if I had tunnel vision," he recalls. "Somehow, I managed to get to the end of the show. How I drove home I have no idea and I should not have done it because I couldn't even see the lines in the middle of the road, but I was desperate to get back to my family and go to bed... The following morning I tried to get up, but felt so dizzy that I fell over. My vision was still bad and this terrible headache was gnawing away right at the base of my skull." He thought it was a severe

text: migraine

text: , but his wife drove him to the local hospital where doctors advised him to have a

text: CT scan

text: of his brain. The tests revealed he had suffered a

text: stroke

text: , but it caused no permanent damage. He also learned that he had a Patent Foramen Ovale (PFO), a hole in the septal wall of his heart, which was later surgically corrected. Several Osmond family members also have this congenital problem.

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answers: tunnel vision

answers: NDQ_018818

answers: tunnel vision

answers: NDQ_018819

answers: tunnel vision

answers: NDQ_018820

answers: tunnel vision

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: The most common type of corrective lens is "single vision", which has a uniform refractive index.  For people with presbyopia and hyperopia, bifocal and trifocal glasses provide two or three different refractive indexes, respectively, and progressive lenses have a continuous gradient.  Reading glasses provide a separate set of glasses for focusing on close-by objects.  Adjustable-focus eyeglasses might be used to replace bifocals or trifocals, or might be used to produce cheaper single-vision glasses (since they don't have to be custom-manufactured for every person).

text: The most common type of corrective lens is "single vision", which has a uniform refractive index.  For people with

text: presbyopia

text: and

text: hyperopia

text: bifocal

text: and

text: trifocal

text: glasses provide two or three different refractive indexes, respectively, and

text: progressive lenses

text: have a continuous gradient.

text: Reading glasses

text: provide a separate set of glasses for focusing on close-by objects.

text: Adjustable-focus eyeglasses

text: might be used to replace bifocals or trifocals, or might be used to produce cheaper single-vision glasses (since they don't have to be custom-manufactured for every person).

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answers: hyperopia

answers: NDQ_018818

answers: on close-by objects

answers: NDQ_018819

answers: presbyopia

answers: NDQ_018820

answers: undefined

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: To determine which people qualify for special assistance because of their visual disabilities, various governments have specific definitions for legal blindness. In North America and most of Europe, legal blindness is defined as visual acuity (vision) of 20/200 (6/60) or less in the better eye with best correction possible. This means that a legally blind individual would have to stand  from an object to see it—with corrective lenses—with the same degree of clarity as a normally sighted person could from . In many areas, people with average acuity who nonetheless have a visual field of less than 20 degrees (the norm being 180 degrees) are also classified as being legally blind.Approximately ten percent of those deemed legally blind, by any measure, have no vision. The rest have some vision, from light perception alone to relatively good acuity. Low vision is sometimes used to describe visual acuities from 20/70 to 20/200.

text: To determine which people qualify for special assistance because of their visual disabilities, various governments have specific definitions for legal blindness. In

text: North America

text: and most of

text: Europe

text: , legal blindness is defined as

text: visual acuity

text: (vision) of 20/200 (6/60) or less in the better eye with best correction possible. This means that a legally blind individual would have to stand  from an object to see it—with

text: corrective lens

text: es—with the same degree of clarity as a normally sighted person could from . In many areas, people with average acuity who nonetheless have a

text: visual field

text: of less than 20

text: degrees

text: (the norm being 180 degrees) are also classified as being legally blind.Approximately ten percent of those deemed legally blind, by any measure, have no vision. The rest have some vision, from light perception alone to relatively good acuity.

text: Low vision

text: is sometimes used to describe visual acuities from 20/70 to 20/200.

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answers: legally blind

answers: NDQ_018818

answers: in the better eye

answers: NDQ_018819

answers: legally blind

answers: NDQ_018820

answers: better

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: A variety of prescription lenses can be fitted inside the glass plate of the mask to correct some visual problems underwater. Divers may be able to use contact lenses inside the mask but they may need to keep their eyes closed if they remove the mask underwater to avoid losing the lenses. Double-dome masks restore natural sized underwater vision and field of view, while also correcting for a certain range of myopic vision.

text: A variety of

text: prescription lenses

text: can be fitted inside the glass plate of the mask to correct some visual problems underwater. Divers may be able to use

text: contact lens

text: es inside the mask but they may need to keep their eyes closed if they remove the mask underwater to avoid losing the lenses.

text: Double-dome masks

text: restore natural sized underwater vision and field of view, while also correcting for a certain range of myopic vision.

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text: America's Best Contacts & Eyeglasses is a discount provider of eye examinations, eyeglasses and contact lenses, with over 400 locations in the United States as of 2014.  From 2005 to 2014, America's Best has been a division of National Vision, a privately held portfolio company owned by Berkshire Partners.  In 2014, National Vision, Inc, was sold to KKR & Co LP.

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text: National Vision

text: , a

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text: owned by

text: Berkshire Partners

text: .  In 2014, National Vision, Inc, was sold to KKR & Co LP.

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text: In his early life, Bowen had an intense fear of water, which was the result of having his head put under water by his caretaker.  After his parents discovered this, swimming lessons commenced and his athletic career as a swimmer began at Los Angeles High School. In August 1944, while still in high school, Bowen enlisted in the U.S. Navy. His vision throughout his life was poor.  Consequently, in order to join the Navy, he memorized the eye chart for his initial physical.  During basic training, his vision problems were discovered by his superiors.  As a result, he was subsequently assigned to teach swimming and water survival skills to enlisted sailors on North Island in San Diego.  He was honorably discharged in 1946.

text: In his early life, Bowen had an intense fear of water, which was the result of having his head put under water by his caretaker.  After his parents discovered this, swimming lessons commenced and his athletic career as a swimmer began at

text: Los Angeles High School

text: . In August 1944, while still in high school, Bowen enlisted in the U.S. Navy. His vision throughout his life was poor.  Consequently, in order to join the Navy, he memorized the eye chart for his initial physical.  During basic training, his vision problems were discovered by his superiors.  As a result, he was subsequently assigned to teach swimming and water survival skills to enlisted sailors on North Island in San Diego.  He was honorably discharged in 1946.

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text: Beyond image segmentation, the random walker algorithm or its extensions has been additionally applied to several problems in computer vision and graphics:

text: Beyond image segmentation, the random walker algorithm or its extensions has been additionally applied to several problems in computer vision and graphics:

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answers: Myopia

answers: NDQ_018819

answers: hyperopia

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answers: hyperopic

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: The F-mount has a significant degree of both backward and forward compatibility. Many current autofocus F-mount lenses can be used on the original Nikon F, and the earliest manual-focus F-mount lenses of the 1960s and early 1970s can, with some modification, still be used to their fullest on all professional-class Nikon cameras. Incompatibilities do exist, however, and adventurous F-mount users should consult product documentation in order to avoid problems. For example, many electronic camera bodies cannot meter without a CPU enabled lens, the aperture of G designated lenses cannot be controlled without an electronic camera body, and non-AI lenses (manufactured prior to 1977) can cause mechanical damage to later model bodies unless they are modified to meet the AI specification. Many manual focus lenses can be converted to allow metering with consumer Nikon bodies by adding a Dandelion chip to the lens.

text: The F-mount has a significant degree of both

text: backward

text: and

text: forward compatibility

text: . Many current autofocus F-mount lenses can be used on the original

text: Nikon F

text: , and the earliest manual-focus F-mount lenses of the 1960s and early 1970s can, with some modification, still be used to their fullest on all professional-class Nikon cameras. Incompatibilities do exist, however, and adventurous F-mount users should consult product documentation in order to avoid problems. For example, many electronic camera bodies cannot meter without a CPU enabled lens, the aperture of G designated lenses cannot be controlled without an electronic camera body, and non-AI lenses (manufactured prior to 1977) can cause mechanical damage to later model bodies unless they are modified to meet the AI specification. Many manual focus lenses can be converted to allow metering with consumer Nikon bodies by adding a

text: Dandelion chip

text: to the lens.

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answers: Myopia is also called farsightedness

answers: NDQ_018818

answers: manual focus

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: hyperopic

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Hyperopia is the defect of vision commonly called farsightedness (American English) or longsightedness (British English).

text: Hyperopia

text: is the defect of vision commonly called farsightedness (American English) or longsightedness (British English).

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answers: Hyperopia

answers: NDQ_018818

answers: longsightedness

answers: NDQ_018819

answers: farsightedness

answers: NDQ_018820

answers: farsighted

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Newborn infants have limited color perception. One study found that 74% of newborns can distinguish red, 36% green, 25% yellow, and 14% blue. After one month performance "improved somewhat." Infant’s eyes don’t have the ability to accommodate. The pediatricians are able to perform non-verbal testing to assess visual acuity of a newborn, detect nearsightedness and astigmatism, and evaluate the eye teaming and alignment. Visual acuity improves from about 20/400 at birth to approximately 20/25 at 6 months of age. All this is happening because the nerve cells in their retina and brain that control vision are not fully developed.

text: Newborn infants have limited color perception. One study found that 74% of newborns can distinguish red, 36% green, 25% yellow, and 14% blue. After one month performance "improved somewhat." Infant’s eyes don’t have the ability to

text: accommodate

text: . The pediatricians are able to perform non-verbal testing to assess

text: visual acuity

text: of a newborn, detect nearsightedness and

text: astigmatism

text: , and evaluate the eye teaming and alignment. Visual acuity improves from about 20/400 at birth to approximately 20/25 at 6 months of age. All this is happening because the nerve cells in their

text: retina

text: and brain that control vision are not fully developed.

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answers: nearsightedness

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answers: astigmatism

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answers: not fully developed

answer: Yes

answer: Yes

answer: No

answer: No

answer: No

answer: 1

text: These works did not present prophecies or scriptures in the ordinary sense: the Etrusca Disciplina foretold nothing itself. The Etruscans appear to have had no systematic ethics or religion and no great visions. Instead they concentrated on the problem of the will of the gods: questioning why, if the gods created the universe and humanity and have a will and a plan for everyone and everything in it, they did not devise a system for communicating that will in a clear manner.

text: These works did not present prophecies or scriptures in the ordinary sense: the Etrusca Disciplina foretold nothing itself. The Etruscans appear to have had no systematic ethics or religion and no great visions. Instead they concentrated on the problem of the will of the gods: questioning why, if the gods created the universe and humanity and have a will and a plan for everyone and everything in it, they did not devise a system for communicating that will in a clear manner.

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answers: blurred

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Corrective ophthalmic appliances may be contact lenses, spectacles lenses, low vision aids or ophthalmic prosthetics to those who are partially sighted. The appliances are mounted either on the eye as contact lenses or mounted in a frame or holder in front of the eye as spectacles or as a monocle.

text: Corrective ophthalmic appliances may be contact lenses, spectacles lenses, low vision aids or ophthalmic prosthetics to those who are partially sighted. The appliances are mounted either on the eye as

text: contact lenses

text: or mounted in a frame or holder in front of the eye as

text: spectacles

text: or as a

text: monocle

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answers: partially sighted

answers: NDQ_018818

answers: on the eye

answers: NDQ_018819

answers: partially sighted

answers: NDQ_018820

answers: partially sighted

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: Other pilots at the charter company told NTSB that pilot Richard Conry and first officer (co-pilot) Michael Guess had both displayed below-average flying skills. Conry had a well-known tendency to allow copilots to take over all aircraft functions as if they were the sole pilot during flights. After the crash, three copilots told of occasions on which they had had to take control of the aircraft away from Conry. After one of those incidents, only three days before the crash, the copilot (not Guess) had urged Conry to retire. In a post-accident interview, Conry's longtime friend and fellow aviator Timothy Cooney said that he had last spoken to Conry in June 2001 and had expressed concerns about difficulties he had flying King Airs as late as April of that year, 18 months before the accident. Significant discrepancies were also found in the captain's flight logs in the course of the post-accident investigation, indicating he had probably greatly exaggerated his flying experience, most of which had been accrued before a 9–10 year hiatus from flying due to a fraud conviction and poor eyesight. He had had Lasik surgery but it had only improved his vision to 20/50 or 20/30 and he was required by FAA regulations to wear corrective lenses, but the pilot's wife and Cooney said Conry did not wear lenses after the surgery. The coroner who examined his badly burned body was unable to determine whether Conry was wearing contact lenses at the time of the crash.

text: Other pilots at the charter company told NTSB that pilot Richard Conry and

text: first officer

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answers: Lasik surgery

answers: NDQ_018818

answers: 20/50

answers: NDQ_018819

answers: Lasik surgery

answers: NDQ_018820

answers: unbalanced

answer: Yes

answer: Yes

answer: No

answer: Yes

answer: No

answer: 1

text: In the Uptown neighborhood of Chicago Dr. Wesley began researching a solution to his vision problems. The optometrist suffered from keratoconus, a degenerative disease of the cornea that affects vision, and had been told by experts that he'd likely lose his sight. He knew that contact lenses helped him see, but the lenses available in the 1940s couldn't be worn for long periods. So Dr. Wesley and his partner, George Jessen, began to research and develop a new type.

text: In the Uptown neighborhood of Chicago Dr. Wesley began researching a solution to his vision problems. The optometrist suffered from keratoconus, a degenerative disease of the cornea that affects vision, and had been told by experts that he'd likely lose his sight. He knew that contact lenses helped him see, but the lenses available in the 1940s couldn't be worn for long periods. So Dr. Wesley and his partner, George Jessen, began to research and develop a new type.

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text: Single vision lenses correct for only distance or near vision. Patients with presbyopia or other disorders of accommodation often benefit from corrections for both distance and near vision (see Lens Types below).   Infrequently, prism and base curve values may also be specified to correct for binocular vision disorders.

text: Single vision lenses

text: correct for only distance or near vision. Patients with

text: presbyopia

text: or other disorders of

text: accommodation

text: often benefit from corrections for both distance and near vision (see

text: Lens Types

text: below).   Infrequently,

text: prism

text: and

text: base curve

text: values may also be specified to correct for

text: binocular vision disorders

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answer: No

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answer: No

answer: Yes

answer: 1

text: Problems with Senge's vision include a failure to fully appreciate and incorporate the imperatives that animate modern organizations; the relative sophistication of the thinking he requires of managers (and whether many in practice are up to it); and questions regarding his treatment of organizational politics. It is certainly difficult to find real-life examples of learning organizations (Kerka 1995). There has also been a lack of critical analysis of the theoretical framework.

text: Problems with Senge's vision include a failure to fully appreciate and incorporate the imperatives that animate modern organizations; the relative sophistication of the thinking he requires of managers (and whether many in practice are up to it); and questions regarding his treatment of organizational politics. It is certainly difficult to find real-life examples of learning organizations (Kerka 1995). There has also been a lack of critical analysis of the theoretical framework.

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answers: squished

answer: Yes

answer: Yes

answer: No

answer: No

answer: No

answer: 1

text: For much of his life, Chedwick was plagued with impaired vision, which led him to the practice of wearing prescription eyeglasses with dark lenses, which also aided in hiding his crossed left eye. His vision-related problems ultimately robbed him of his ability to drive a car. In 1990, he was diagnosed with a large, benign brain tumor. When news broke of the diagnosis, it sent a shock throughout Pittsburgh and a national community of pioneer artists who still felt in his debt. Friends including Little Anthony, Hank Ballard, Lou Christie, Wolfman Jack, Johnnie and Joe, Bobby Comstock, The Marcels, The Vogues, and Bo Diddley organized a benefit concert to help shoulder the huge medical bill for the operation from which he fully recovered. The surgery was performed at West Penn Hospital and drew more than five thousand get-well cards from fans and other supporters. Some remaining money from the fund-raiser was put into a trust fund against the day when Chedwick would need long-term residential or hospice care. Not long after Chedwick's brain surgery, he also underwent a second operation to correct his crossed left eye, enabling him to see with clear lenses.

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answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: Non-telecentric lenses exhibit varying magnification for objects at different distances from the lens. Most lenses are entocentric—objects further away have lower magnification. For pericentric lenses, objects further away have higher magnification.  The variation of magnification with distance causes several problems for machine vision and other applications:

text: Non-telecentric lenses exhibit varying

text: magnification

text: for objects at different distances from the lens. Most lenses are

text: entocentric

text: —objects further away have lower magnification. For

text: pericentric lens

text: es, objects further away have higher magnification.  The variation of magnification with distance causes several problems for machine vision and other applications:

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answers: pericentric lenses

answers: NDQ_018818

answers: closer to the lens

answers: NDQ_018819

answers: entocentric

answers: NDQ_018820

answers: telecentric

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: In the Book of Optics (1011–1022 A.D.), Ibn al-Haytham argued that vision occurs in the brain, and that personal experience has an effect on what people see and how they see, and that vision and perception are subjective. Arguing against Ptolemy's refraction theory for why people perceive the sun and moon larger at the horizon than when they are higher in the sky, he redefined the problem in terms of perceived, rather than real, enlargement. He said that judging the distance of an object depends on there being an uninterrupted sequence of intervening bodies between the object and the observer. With the Moon, however, there are no intervening objects. Therefore, since the size of an object depends on its observed distance, which is in this case inaccurate, the Moon appears larger on the horizon. Through works by Roger Bacon, John Pecham and Witelo based on Ibn al-Haytham's explanation, the Moon illusion gradually came to be accepted as a psychological phenomenon, with Ptolemy's theory being rejected in the 17th century.For over 100 years, research on the Moon illusion has been conducted by vision scientists who invariably have been psychologists specializing in human perception. After reviewing the many different explanations in their 2002 book The Mystery of the Moon Illusion, Ross and Plug conclude "No single theory has emerged victorious".

text: In the

text: Book of Optics

text: (1011–1022 A.D.),

text: Ibn al-Haytham

text: argued that vision occurs in the brain, and that personal experience has an effect on what people see and how they see, and that vision and perception are subjective. Arguing against

text: Ptolemy

text: 's refraction theory for why people perceive the sun and

text: moon

text: larger at the

text: horizon

text: than when they are higher in the sky, he redefined the problem in terms of perceived, rather than real, enlargement. He said that judging the distance of an object depends on there being an uninterrupted sequence of intervening bodies between the object and the observer. With the Moon, however, there are no intervening objects. Therefore, since the size of an object depends on its observed distance, which is in this case inaccurate, the Moon appears larger on the horizon. Through works by

text: Roger Bacon

text: John Pecham

text: and

text: Witelo

text: based on Ibn al-Haytham's explanation, the Moon illusion gradually came to be accepted as a psychological phenomenon, with Ptolemy's theory being rejected in the 17th century.For over 100 years, research on the Moon illusion has been conducted by vision scientists who invariably have been psychologists specializing in human

text: perception

text: . After reviewing the many different explanations in their 2002 book The Mystery of the Moon Illusion, Ross and Plug conclude "No single theory has emerged victorious".

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answers: the Moon appears larger on the horizon

answers: NDQ_018818

answers: at the horizon

answers: NDQ_018819

answers: Moon appears larger on the horizon

answers: NDQ_018820

answers: higher in the sky

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Degrees of vision loss vary dramatically, although the ICD-9 released in 1979 categorized them into three tiers: normal vision, low vision, and blindness.  Two significant causes of vision loss due to sensory failures include media opacity and optic nerve diseases, although hypoxia and retinal disease can also lead to blindness.  Most causes of vision loss can cause varying degrees of damage, from total blindness to a negligible effect. Media opacity occurs in the presence of opacities in the eye tissues or fluid, distorting and/or blocking the image prior to contact with the photoreceptor cells.  Vision loss often results despite correctly functioning retinal receptors. Optic nerve diseases such as optic neuritis or retrobulbar neuritis lead to dysfunction in the afferent nerve pathway once the signal has been correctly transmitted from retinal photoreceptors.

text: Degrees of vision loss vary dramatically, although the

entity_name: International Statistical Classification of Diseases and Related Health Problems

text: released in 1979 categorized them into three tiers:

text: normal vision

text: low vision

text: , and

text: blindness

text: .  Two significant causes of vision loss due to sensory failures include media opacity and

text: optic nerve

text: diseases, although

text: hypoxia

text: and

text: retinal disease

text: can also lead to blindness.  Most causes of vision loss can cause varying degrees of damage, from total blindness to a negligible effect. Media opacity occurs in the presence of

text: opacities

text: in the eye tissues or fluid, distorting and/or blocking the

text: image

text: prior to contact with the

text: photoreceptor cells

text: .  Vision loss often results despite correctly functioning retinal receptors. Optic nerve diseases such as

text: optic neuritis

text: or

text: retrobulbar neuritis

text: lead to dysfunction in the afferent nerve pathway once the signal has been correctly transmitted from retinal photoreceptors.

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answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: A corrective lens is a lens worn in front of the eye, mainly used to treat myopia, hyperopia, astigmatism, and presbyopia. The goal is to bring vision up to 20/20 vision or as close to this as possible.  Glasses  or "spectacles" are corrective lenses worn on the face a short distance in front of the eye.  Contact lenses are worn directly on the surface of the eye. Intraocular lenses are surgically implanted most commonly after cataract removal, but recently for purely refractive purposes. Myopia (short sightedness) requires a divergent lens, whereas hyperopia (far sightedness) requires convergent lens.

text: A corrective lens is a

text: lens

text: worn in front of the

text: eye

text: , mainly used to treat

text: myopia

text: hyperopia

text: astigmatism

text: , and

text: presbyopia

text: . The goal is to bring vision up to 20/20 vision or as close to this as possible.

text: Glasses

text: or "spectacles" are corrective lenses worn on the face a short distance in front of the eye.

text: Contact lens

text: es are worn directly on the surface of the eye.

text: Intraocular lens

text: es are surgically implanted most commonly after

text: cataract

text: removal, but recently for

text: purely refractive purposes

text: . Myopia (short sightedness) requires a divergent lens, whereas hyperopia (far sightedness) requires convergent lens.

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answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: The different kinds of deep space and orbital missions that are conducted suggest that trying to find a "one size fits all" error correction system will be an ongoing problem for some time to come. For missions close to Earth the nature of the channel noise is different from that which a spacecraft on an interplanetary mission experiences. Additionally, as a spacecraft increases its distance from Earth, the problem of correcting for noise gets larger.

text: The different kinds of deep space and orbital missions that are conducted suggest that trying to find a "one size fits all" error correction system will be an ongoing problem for some time to come. For missions close to Earth the nature of the

text: channel

text: noise

text: is different from that which a spacecraft on an interplanetary mission experiences. Additionally, as a spacecraft increases its distance from Earth, the problem of correcting for noise gets larger.

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answers: myopia

answers: NDQ_018819

answers: Hyperopia is also called nearsightedness

answers: NDQ_018820

answers: hyperopic

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: According to Girard: "As Gould was such a complex character, the biggest problem was to find a way to look at his work and deal with his visions. The film is built of fragments, each one trying to capture an aspect of Gould. There is no way of putting Gould in one box. The film gives the viewer 32 impressions of him. I didn't want to reduce him to one dimension."

text: According to Girard: "As Gould was such a complex character, the biggest problem was to find a way to look at his work and deal with his visions. The film is built of fragments, each one trying to capture an aspect of Gould. There is no way of putting Gould in one box. The film gives the viewer 32 impressions of him. I didn't want to reduce him to one dimension."

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answers: myopia

answers: NDQ_018818

answers: myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: one size

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Bates felt that corrective lenses, which he characterized as "eye crutches", are an impediment to curing poor vision. In his view, "strain" would increase as the eyes adjust to the correction in front of them. He thus recommended that glasses be discarded by anyone applying his method.

text: Bates felt that

text: corrective lenses

text: , which he characterized as "eye crutches", are an impediment to curing poor vision. In his view, "strain" would increase as the eyes adjust to the correction in front of them. He thus recommended that

text: glasses

text: be discarded by anyone applying his method.

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answers: myopia

answers: NDQ_018818

answers: on the retina

answers: NDQ_018819

answers: nearsightedness

answers: NDQ_018820

answers: in front of them

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: Some people with poor outcomes from LASIK surgical procedures report a significantly reduced quality of life because of vision problems or physical pain associated with the surgery. A small percentage of patients may need to have another surgery because their condition is over-corrected or under-corrected. Some patients need to wear contact lenses or glasses even after treatment.

text: Some people with poor outcomes from LASIK surgical procedures report a significantly reduced

text: quality of life

text: because of vision problems or physical pain associated with the surgery. A small percentage of patients may need to have another surgery because their condition is over-corrected or under-corrected. Some patients need to wear contact lenses or glasses even after treatment.

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answers: over-corrected

answers: NDQ_018818

answers: under-corrected

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: overcorrected

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: Far-sightedness, also known as long-sightedness and hyperopia, is a condition of the eye in which light is focused behind, instead of on, the retina. This causes close objects to be blurry, while far objects may appear normal. As the condition worsens, objects at all distances may be blurred. Other symptoms may include headaches and eye strain. People with hyperopia can also experience accommodative dysfunction, binocular dysfunction, amblyopia, and strabismus,

text: Far-sightedness, also known as long-sightedness and hyperopia, is a condition of the

text: eye

text: in which light is focused behind, instead of on, the

text: retina

text: . This causes close objects to be

text: blurry

text: , while far objects may appear normal. As the condition worsens, objects at all distances may be blurred. Other symptoms may include

text: headache

text: s and

text: eye strain

text: . People with hyperopia can also experience

text: accommodative dysfunction

text: binocular dysfunction

text: amblyopia

text: , and

text: strabismus

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answers: long-sightedness

answers: NDQ_018818

answers: on

answers: NDQ_018819

answers: Far-sightedness

answers: NDQ_018820

answers: focused behind, instead of on

answer: No

answer: No

answer: Yes

answer: No

answer: No

answer: 1

text: According to Gammel, "In her controversial tome of 1913, The Accumulation of Capital, as well as through her work as a co-founder of the radical Spartacus League, Luxemburg helped to shape Germany's young democracy by advancing an international, rather than a nationalist, outlook.  This farsightedness partly explains her remarkable popularity as a socialist icon and its continued resonance in movies, novels and memorials dedicated to her life and oeuvre." Gammel also notes that for Luxemburg, "the revolution was a way of life," and yet that the letters also challenge the stereotype of "Red Rosa" as a ruthless fighter. But The Accumulation of Capital sparked angry accusations from the Communist Party of Germany; in 1923 Ruth Fischer and Arkadi Maslow denounced the work as "errors", a derivative work of economic miscalculation known as "spontaneity".

text: According to Gammel, "In her controversial tome of 1913, The Accumulation of Capital, as well as through her work as a co-founder of the radical

text: Spartacus League

text: , Luxemburg helped to shape Germany's young democracy by advancing an international, rather than a nationalist, outlook.  This farsightedness partly explains her remarkable popularity as a socialist icon and its continued resonance in movies, novels and memorials dedicated to her life and oeuvre." Gammel also notes that for Luxemburg, "the revolution was a way of life," and yet that the letters also challenge the stereotype of "Red Rosa" as a ruthless fighter. But The Accumulation of Capital sparked angry accusations from the

text: Communist Party of Germany

text: ; in 1923

text: Ruth Fischer

text: and

text: Arkadi Maslow

text: denounced the work as "errors", a derivative work of economic miscalculation known as "spontaneity".

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answers: farsightedness

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answers: farsighted

answer: No

answer: No

answer: Yes

answer: No

answer: No

answer: 1

text: Partly as a result of problems that included the investigation of Rives's predecessor as TJAG, and partly because of the importance then-U.S. Air Force Chief of Staff T. Michael Moseley placed on the JAG Corps, Rives was given the chance to restructure and revise the corps.  His work, which included the convening of a "Keystone Leadership Summit" in 2005, and "Horizons sessions" to assess progress and course-correct as necessary, led to "JAG Corps 21," the new vision for the Judge Advocate General's Corps in the twenty-first century.

text: Partly as a result of problems that included the investigation of Rives's predecessor as TJAG, and partly because of the importance then-U.S. Air Force Chief of Staff

text: T. Michael Moseley

text: placed on the JAG Corps, Rives was given the chance to restructure and revise the corps.  His work, which included the convening of a "Keystone Leadership Summit" in 2005, and "Horizons sessions" to assess progress and course-correct as necessary, led to "JAG Corps 21," the new vision for the Judge Advocate General's Corps in the twenty-first century.

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answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Lenticonus  (/len·ti·co·nus/ (len″tĭ-ko´nus)) [lens + L. conus, cone] is a rare congenital anomaly of the eye characterized by a conical protrusion on the crystalline lens capsule and the underlying cortex. It can reach a diameter of 2 to 7 mm. The conus may occur anteriorly or posteriorly. If the bulging is spherical, instead of conical, the condition is referred to as lentiglobus. It produces a decrease in visual acuity and irregular refraction that cannot be corrected by either spectacle or contact lenses.

text: Lenticonus  (/len·ti·co·nus/ (len″tĭ-ko´nus)) [lens + L. conus, cone] is a rare

text: congenital anomaly

text: of the eye characterized by a conical protrusion on the crystalline lens capsule and the underlying cortex. It can reach a diameter of 2 to 7 mm. The conus may occur anteriorly or posteriorly. If the bulging is spherical, instead of conical, the condition is referred to as lentiglobus. It produces a decrease in visual acuity and irregular refraction that cannot be corrected by either spectacle or contact lenses.

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answers: irregular refraction

answers: NDQ_018819

answers: a decrease in visual acuity and irregular refraction

answers: NDQ_018820

answers: conical

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Corrective lenses are used to correct refractive errors by bending the light entering the eye in order to alleviate the effects of conditions such as nearsightedness (myopia), farsightedness (Hypermetropia) or astigmatism. Another common condition in patients over forty years old is presbyopia, which is caused by the eye's crystalline lens losing elasticity, progressively reducing the ability of the lens to accommodate (i.e. to focus on objects close to the eye). Corrective lenses are made to conform to the prescription of an ophthalmologist or optometrist.  A lensmeter can be used to verify the specifications of a pair of glasses.

text: Corrective lenses are used to correct

text: refractive error

text: s by bending the light entering the eye in order to alleviate the effects of conditions such as

text: nearsightedness (myopia)

text: farsightedness (Hypermetropia)

text: or

text: astigmatism

text: . Another common condition in patients over forty years old is

text: presbyopia

text: , which is caused by the eye's

text: crystalline lens

text: losing elasticity, progressively reducing the ability of the lens to

text: accommodate

text: (i.e. to focus on objects close to the eye). Corrective lenses are made to conform to the

text: prescription

text: of an

text: ophthalmologist

text: or

text: optometrist

text: .  A

text: lensmeter

text: can be used to verify the specifications of a pair of glasses.

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answers: Hypermetropia

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answers: nearsightedness

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answers: myopia

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answers: farsighted

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: A common cause of low visual acuity is refractive error (ametropia), or errors in how the light is refracted in the eyeball. Causes of refractive errors include aberrations in the shape of the eyeball, the shape of the cornea, and reduced flexibility of the lens. Too high or too low refractive error (in relation to the length of the eyeball) is the cause of nearsightedness (myopia) or farsightedness (hyperopia) (normal refractive status is referred to as emmetropia). Other optical causes are astigmatism or more complex corneal irregularities. These anomalies can mostly be corrected by optical means (such as eyeglasses, contact lenses, laser surgery, etc.).

text: A common cause of low visual acuity is

text: refractive error (ametropia)

text: , or errors in how the light is refracted in the eyeball. Causes of refractive errors include aberrations in the shape of the

text: eyeball

text: , the shape of the

text: cornea

text: , and reduced flexibility of the

text: lens

text: . Too high or too low refractive error (in relation to the length of the eyeball) is the cause of

text: nearsightedness (myopia)

text: or

text: farsightedness (hyperopia)

text: (normal refractive status is referred to as

text: emmetropia

text: ). Other optical causes are

text: astigmatism

text: or more complex corneal irregularities. These anomalies can mostly be corrected by optical means (such as

text: eyeglasses

text: contact lenses

text: laser surgery

text: , etc.).

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answers: Too high or too low

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answers: too low

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: 1

text: Most problems do not require or are not treatable through fetal intervention. The exceptions are anatomical problems for which correction in utero is feasible and may be of significant benefit in the future development and survival of the fetus.  Early correction (prior to birth) of these problems will likely increase the odds of a healthy and relatively "normal" baby.

text: Most problems do not require or are not treatable through fetal intervention. The exceptions are anatomical problems for which correction in utero is feasible and may be of significant benefit in the future development and survival of the fetus.  Early correction (prior to birth) of these problems will likely increase the odds of a healthy and relatively "normal" baby.

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answers: normal

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Previous prototypes proved that it is possible to create a biologically safe electronic lens that does not obstruct a person’s view. Engineers have tested the finished lenses on rabbits for up to 20 minutes and the animals showed no problems.

text: Previous prototypes proved that it is possible to create a biologically safe electronic lens that does not obstruct a person’s view. Engineers have tested the finished lenses on rabbits for up to 20 minutes and the animals showed no problems.

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answer: No

answer: No

answer: No

answer: No

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text: Vision problems in infants are both common and easily treatable if addressed early by an ophthalmologist.

text: Vision problems in infants are both common and easily treatable if addressed early by an ophthalmologist.

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answer: Yes

answer: No

answer: Yes

answer: No

answer: No

answer: 1

text: To estimate a robust model from the data, a common method used is known as RANSAC.<br>The name RANSAC is an abbreviation for "RANdom SAmple Consensus". It is an iterative method for robust parameter estimation to fit mathematical models from sets of observed data points which may contain outliers. The algorithm is non-deterministic in the sense that it produces a reasonable result only with a certain probability, with this probability increasing as more iterations are performed. It being a probabilistic method means that different results will be obtained for every time the algorithm is run. The RANSAC algorithm has found many applications in computer vision, including the simultaneous solving of the correspondence problem and the estimation of the fundamental matrix related to a pair of stereo cameras.The basic assumption of the method is that the data consists of "inliers", i.e., data whose distribution can be explained by some mathematical model, and "outliers" which are data that do not fit the model. Outliers are considered points which come from noise, erroneous measurements, or simply incorrect data.For the problem of homography estimation, RANSAC works by trying to fit several models using some of the point pairs and then checking if the models were able to relate most of the points. The best model, i.e., the homography which produces the highest number of correct matches, is then chosen as the answer for the problem thus if the ratio of number of outliers to data points is very low the RANSAC outputs a decent model fitting the data.

text: To estimate a robust model from the data, a common method used is known as

text: RANSAC

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answers: Outliers

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answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Where an individual problem is serious enough to warrant it, a dedicated problem management team should be formulated to work together in overcoming that particular problem. The Problem Manager has a role to play in making sure that the correct number and level of resources is available in the team and for escalation and communication up the management chain of all organizations concerned.

text: Where an individual problem is serious enough to warrant it, a dedicated problem management team should be formulated to work together in overcoming that particular problem. The Problem Manager has a role to play in making sure that the correct number and level of resources is available in the team and for escalation and communication up the management chain of all organizations concerned.

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answers: unbalanced

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: The top letter on many eye charts represents 20/200 vision. This is the boundary for legal blindness; the US Social Security administration, for example, states that "we consider you to be legally blind if your vision cannot be corrected to better than 20/200 in your better eye." Note that the definition of legal blindness is based on corrected vision (vision when wearing glasses or contacts). It's not at all unusual for people to have uncorrected vision that's worse than 20/200.

text: The top letter on many eye charts represents 20/200 vision. This is the boundary for legal blindness; the US Social Security administration, for example, states that "we consider you to be legally blind if your vision cannot be corrected to better than 20/200 in your better eye." Note that the definition of legal blindness is based on corrected vision (vision when wearing glasses or contacts). It's not at all unusual for people to have uncorrected vision that's worse than 20/200.

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answers: in your better eye

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answers: 20/200 vision

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answer: No

answer: No

answer: No

answer: No

answer: No

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text: A vision therapist, usually either an orthoptist or optometrist, works with patients that require vision therapy, such as low vision patients. Commonly, vision therapy is performed in children who develop problems with their vision mostly because they are using their eyes up close. This type of therapy is however generally used in patients who need visual correction but for whom the corrective lenses are not enough to reverse the condition. Visual therapy in children is performed by optometrists who specialize in children eye care. To specialize in vision therapy, doctors must complete extensive post-graduate training beyond their optometric degree, at which time they are eligible to sit for their national boards to become fully certified as specialists in children's vision. A doctor's title after passing the national board in vision therapy is Fellow in the College of Optometrists in Vision Development, or F.C.O.V.D. Optometrists who provide vision therapy but who have not yet sat for their certification exams are board-eligible Associates in the College of Optometrists in Vision Development.Vision therapists typically rely on prisms, eye patches, filtered lenses, and computerized systems to conduct therapy sessions.

text: A vision therapist, usually either an orthoptist or optometrist, works with patients that require vision therapy, such as low vision patients. Commonly, vision therapy is performed in

text: children

text: who develop problems with their vision mostly because they are using their eyes up close. This type of therapy is however generally used in patients who need visual correction but for whom the corrective lenses are not enough to reverse the condition. Visual therapy in children is performed by optometrists who specialize in children eye care. To specialize in vision therapy, doctors must complete extensive post-graduate training beyond their optometric degree, at which time they are eligible to sit for their national boards to become fully certified as specialists in children's vision. A doctor's title after passing the national board in vision therapy is Fellow in the

entity_name: College of Optometrists in Vision Development

text: College of Optometrists in Vision Development

text: , or F.C.O.V.D. Optometrists who provide vision therapy but who have not yet sat for their certification exams are board-eligible Associates in the College of Optometrists in Vision Development.Vision therapists typically rely on

text: prisms

text: , eye patches, filtered lenses, and computerized systems to conduct therapy sessions.

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answers: low vision

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answers: up close

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answers: up close

answer: No

answer: No

answer: Yes

answer: No

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answer: 1

text: Other symptoms can include short stature, abnormal curvature of the spine (scoliosis), reduced sensitivity to pain and temperature, and a hoarse voice. Some people with this disorder have ear abnormalities that lead to hearing loss. Affected individuals may have eye abnormalities that cause nearsightedness (myopia), strabismus, and other problems with vision. Heart and kidney defects also have been reported in people with Smith–Magenis syndrome, though they are less common.

text: Other symptoms can include short stature, abnormal curvature of the spine (

text: scoliosis

text: ), reduced sensitivity to

text: pain

text: and

text: temperature

text: , and a hoarse voice. Some people with this disorder have ear abnormalities that lead to hearing loss. Affected individuals may have eye abnormalities that cause nearsightedness (

text: myopia

text: strabismus

text: , and other problems with vision. Heart and kidney defects also have been reported in people with Smith–Magenis syndrome, though they are less common.

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answer: Yes

answer: Yes

answer: Yes

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answer: 1

text: In the USA, corneal transplants (also known as corneal grafts) for keratoconus are usually performed under sedation as outpatient surgery. In other countries, such as Australia and the UK, the operation is commonly performed with the person undergoing a general anaesthetic. All cases require a careful follow-up with an eye doctor (ophthalmologist or optometrist) for a number of years. Frequently, vision is greatly improved after the surgery, but even if the actual visual acuity does not improve, because the cornea is a more normal shape after the healing is completed, people can more easily be fitted with corrective lenses. Complications of corneal transplants are mostly related to vascularization of the corneal tissue and rejection of the donor cornea. Vision loss is very rare, though difficult-to-correct vision is possible. When rejection is severe, repeat transplants are often attempted, and are frequently successful. Keratoconus will not normally reoccur in the transplanted cornea; incidences of this have been observed, but are usually attributed to incomplete excision of the original cornea or inadequate screening of the donor tissue. The long-term outlook for corneal transplants performed for keratoconus is usually favorable once the initial healing period is completed and a few years have elapsed without problems.

text: In the USA, corneal transplants (also known as corneal grafts) for keratoconus are usually performed under sedation as

text: outpatient

text: surgery. In other countries, such as Australia and the UK, the operation is commonly performed with the person undergoing a general anaesthetic. All cases require a careful follow-up with an eye doctor (ophthalmologist or optometrist) for a number of years. Frequently, vision is greatly improved after the surgery, but even if the actual visual acuity does not improve, because the cornea is a more normal shape after the healing is completed, people can more easily be fitted with corrective lenses. Complications of corneal transplants are mostly related to vascularization of the corneal tissue and

text: rejection

text: of the donor cornea.

text: Vision loss

text: is very rare, though difficult-to-correct vision is possible. When rejection is severe, repeat transplants are often attempted, and are frequently successful. Keratoconus will not normally reoccur in the transplanted cornea; incidences of this have been observed, but are usually attributed to incomplete excision of the original cornea or inadequate screening of the donor tissue. The long-term outlook for corneal transplants performed for keratoconus is usually favorable once the initial healing period is completed and a few years have elapsed without problems.

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answer: Yes

answer: Yes

answer: No

answer: No

answer: No

answer: 1

text: With modern computer-controlled design, grinding and polishing techniques, good vision corrections can be achieved for even wider angles of view by allowing certain deviations from the toric shape. This is called an atoric lens (literally, non-toric lens). They are related to toric lenses in the same way that aspheric lenses are related to spherical lenses.

text: With modern computer-controlled design, grinding and polishing techniques, good vision corrections can be achieved for even wider angles of view by allowing certain deviations from the toric shape. This is called an atoric lens (literally, non-toric lens). They are related to toric lenses in the same way that

text: aspheric lens

text: es are related to spherical lenses.

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answer: Yes

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: As a consequence, there are two different refractive powers at orientations perpendicular to each other. At intermediate orientations, the refractive power changes gradually from the greatest to the smallest value, or reverse. This will compensate for the astigmatic aberration of the eye.

text: As a consequence, there are two different refractive powers at orientations perpendicular to each other. At intermediate orientations, the refractive power changes gradually from the greatest to the smallest value, or reverse. This will compensate for the astigmatic aberration of the eye.

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answers: NDQ_018820

answers: perpendicular

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Night fighter training, as part of the realm of night fighting, was a pioneering effort during World War II.  The units at Orlando AAB and Kissimmee AAF accomplished what they did because of the courage and farsightedness of men in this new field of combat with limited resources and support.

text: Night fighter training, as part of the realm of night fighting, was a pioneering effort during World War II.  The units at Orlando AAB and Kissimmee AAF accomplished what they did because of the courage and farsightedness of men in this new field of combat with limited resources and support.

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answer: No

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answer: No

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text: The vision of the semantic desktop can be considered as a response to the perceived problems of existing user interfaces. Without good metadata, computers cannot easily learn many commonly needed attributes about files. For example, suppose one downloads a document by a particular author on a particular subject - though the document will likely clearly indicate its subject, author, source and possibly copyright information there may be no easy way for the computer to obtain this information and process it across applications like file managers, desktop search engines, and other services. This means the computer cannot search, filter or otherwise act upon the information as effectively as it otherwise could. This is very much the problem that the Semantic Web is concerned with.

text: The vision of the semantic desktop can be considered as a response to the perceived problems of existing user interfaces. Without good

text: metadata

text: , computers cannot easily learn many commonly needed attributes about files. For example, suppose one downloads a document by a particular author on a particular subject - though the document will likely clearly indicate its subject, author, source and possibly

text: copyright

text: information there may be no easy way for the computer to obtain this information and process it across applications like file managers, desktop search engines, and other services. This means the computer cannot search, filter or otherwise act upon the information as effectively as it otherwise could. This is very much the problem that the

text: Semantic Web

text: is concerned with.

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answers: without good metadata

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answers: Hyperopia is also called nearsightedness

answers: NDQ_018820

answers: blurred

answer: No

answer: No

answer: No

answer: No

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answer: 1

text: Lenticular bedding occurs when sand ripples are deposited in mud in an isolated distribution pattern. Ripples in lenticular bedding are both laterally and horizontally discontinuous. Lenticular bedding can be subdivided according to whether or not they have connected lenses and the type of lenses they feature. Lenticular bedding with connected lenses can have up to 75% of discontinuous lenses. Lenticular bedding with single lenses has to have more than 75% discontinuous lenses. Lens thickness is based on a length to height ratio. Thick lenses have a length/height ratio that is <20 and flat lens ratio is >20. So the possible types of lenticular bedding are lenticular bedding with connected flat or thick lenses and lenticular bedding with single flat or thick lenses.

text: Lenticular bedding occurs when sand ripples are deposited in mud in an isolated distribution pattern. Ripples in lenticular bedding are both laterally and horizontally discontinuous. Lenticular bedding can be subdivided according to whether or not they have connected lenses and the type of lenses they feature. Lenticular bedding with connected lenses can have up to 75% of discontinuous lenses. Lenticular bedding with single lenses has to have more than 75% discontinuous lenses. Lens thickness is based on a length to height ratio. Thick lenses have a length/height ratio that is <20 and flat lens ratio is >20. So the possible types of lenticular bedding are lenticular bedding with connected flat or thick lenses and lenticular bedding with single flat or thick lenses.

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answers: NDQ_018818

answers: Lenticular bedding

answers: NDQ_018819

answers: Lenticular bedding

answers: NDQ_018820

answers: isolated distribution pattern

answer: No

answer: No

answer: No

answer: No

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answer: 1

text: On July 15, 2005, The League For Democracy Party (LDP) was founded. It was registered and officially recognized by Prakas (Announcement) of the Ministry of Interior No.792 Pr. K. Dated June 26, 2006. Having been the party Leader for eight years, he highlighted that the first sign he could understand about politics was the observation that Sam Rainsy Party always viewed problems as their solution, and when they addressed the people, they always raised only the problems. In each forum, they told the people about the problems and asked the people to vote for them, without suggesting the way in which the problems could be solved. He was continuously asking the question to himself, “why are not suggesting a way in which problems can be solved, and why are they just talking of the problems which everybody in the country is aware of?” In this regard, he emphasized that politicians are the ones who have progressive ideas. Talking about the problems will never suffice for one to be politicians. They must have a vision, with activities to achieve this vision. Having taken into account all existing parties, he knew that there were no parties which were good enough, and he decided to establish a new political party, the League for Democracy Party (LDP), to promote his vision.

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answers: NDQ_018820

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answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Video game playing may be associated with vision problems. Extensive viewing of the screen can cause eye strain, as the cornea, pupil, and iris are not intended for mass viewing sessions of electronic devices. Using video games for too long may also cause headaches, dizziness, and chances of vomiting from focusing on a screen.

text: Video game playing may be associated with vision problems. Extensive viewing of the screen can cause eye strain, as the cornea, pupil, and iris are not intended for mass viewing sessions of electronic devices. Using video games for too long may also cause headaches, dizziness, and chances of vomiting from focusing on a screen.

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answer: No

answer: Yes

answer: No

answer: No

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text: The PERK study demonstrated that people who undergo RK continue to drift toward hyperopia ("farsightedness"). Additionally, many of these people have reached the age where presbyopia occurs. Some also develop cataracts. Their vision can still be restored with epilasik, photorefractive keratectomy, LASIK or phakic lens extraction, or cataract surgery. The corneal curvature has to re measured and modified by history, central keratometry, or contact lens method.

text: The PERK study demonstrated that people who undergo RK continue to drift toward

text: hyperopia

text: ("farsightedness"). Additionally, many of these people have reached the age where presbyopia occurs. Some also develop cataracts. Their vision can still be restored with epilasik,

text: photorefractive keratectomy

text: LASIK

text: or phakic lens extraction, or cataract surgery. The corneal curvature has to re measured and modified by history, central

text: keratometry

text: , or contact lens method.

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answers: NDQ_018819

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answers: farsighted

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: 1

text: The porpoise eye is relatively small for its size, yet they do retain a good degree of eyesight. As well as this, the eyes of a porpoise are placed on the sides of its head, so their vision consists of two fields, rather than a binocular view like humans have. When porpoises surface, their lens and cornea correct the nearsightedness that results from the refraction of light; their eyes contain both rod and cone cells, meaning they can see in both dim and bright light. Porpoises do, however, lack short wavelength sensitive visual pigments in their cone cells indicating a more limited capacity for colour vision than most mammals. Most porpoises have slightly flattened eyeballs, enlarged pupils (which shrink as they surface to prevent damage), slightly flattened corneas and a tapetum lucidum; these adaptations allow for large amounts of light to pass through the eye and, therefore, they are able to form a very clear image of the surrounding area.

text: The porpoise eye is relatively small for its size, yet they do retain a good degree of eyesight. As well as this, the eyes of a porpoise are placed on the sides of its head, so their vision consists of two fields, rather than a binocular view like humans have. When porpoises surface, their lens and cornea correct the nearsightedness that results from the refraction of light; their eyes contain both

text: rod

text: and

text: cone

text: cells, meaning they can see in both dim and bright light. Porpoises do, however, lack short wavelength sensitive visual pigments in their cone cells indicating a more limited capacity for colour vision than most mammals. Most porpoises have slightly flattened eyeballs, enlarged pupils (which shrink as they surface to prevent damage), slightly flattened corneas and a

text: tapetum lucidum

text: ; these adaptations allow for large amounts of light to pass through the eye and, therefore, they are able to form a very clear image of the surrounding area.

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answers: nearsightedness

answers: NDQ_018819

answers: When porpoises surface, their lens and cornea correct the nearsightedness

answers: NDQ_018820

answers: flattened

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Boyd's first true Hollywood role came as a renegade cowboy in the Fox western The Bravados, which starred Gregory Peck and Joan Collins. It was during the making of this film in Mexico in the early part of 1958 that Boyd was finally convinced to audition for the coveted role of Messala in MGM's upcoming epic Ben-Hur. Many other actors had tried for the role, and Boyd initially wasn't interested. But he eventually signed and began filming in the summer of 1958. Boyd was required to wear brown contact lenses as Messala, which irritated his eyes and caused vision problems for a few months after the movie was completed. Despite this, Boyd described the filming experience of Ben-Hur (which took place in Cinecittà Studios in Rome), as the most exciting experience of his life.

text: Boyd's first true Hollywood role came as a renegade cowboy in the Fox western

text: The Bravados

text: , which starred

text: Gregory Peck

text: and

text: Joan Collins

text: . It was during the making of this film in Mexico in the early part of 1958 that Boyd was finally convinced to audition for the coveted role of Messala in MGM's upcoming epic

text: Ben-Hur

text: . Many other actors had tried for the role, and Boyd initially wasn't interested. But he eventually signed and began filming in the summer of 1958. Boyd was required to wear brown contact lenses as Messala, which irritated his eyes and caused vision problems for a few months after the movie was completed. Despite this, Boyd described the filming experience of Ben-Hur (which took place in

text: Cinecittà

text: Studios in Rome), as the most exciting experience of his life.

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answers: irritated his eyes

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answer: Yes

answer: Yes

answer: No

answer: Yes

answer: No

answer: 1

text: Various eye care professionals, including ophthalmologists, optometrists, and opticians, are involved in the treatment and management of ocular and vision disorders. A Snellen chart is one type of eye chart used to measure visual acuity. At the conclusion of a complete eye examination, the eye doctor might provide the patient with an eyeglass prescription for corrective lenses. Some disorders of the eyes for which corrective lenses are prescribed include myopia (near-sightedness) which affects about one-third of the human population, hyperopia (far-sightedness) which affects about one quarter of the population, astigmatism, and presbyopia (the loss of focusing range during aging).

text: Various

text: eye care professional

text: s, including

text: ophthalmologist

text: s,

text: optometrist

text: s, and

text: optician

text: s, are involved in the treatment and management of ocular and vision disorders. A

text: Snellen chart

text: is one type of

text: eye chart

text: used to measure

text: visual acuity

text: . At the conclusion of a complete

text: eye examination

text: , the eye doctor might provide the patient with an

text: eyeglass prescription

text: for

text: corrective lens

text: es. Some disorders of the eyes for which corrective lenses are prescribed include

text: myopia

text: (near-sightedness) which affects about one-third of the human population,

text: hyperopia

text: (far-sightedness) which affects about one quarter of the population,

text: astigmatism

text: , and

text: presbyopia

text: (the loss of focusing range during aging).

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answers: near-sightedness

answers: NDQ_018819

answers: myopia

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answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: After the war, Braunschweig ended up in the British occupation zone. The allied occupying forces wanted Rollei to survive as a company, even helping it procure lenses from Zeiss, which had ended up in the Soviet occupation zone. Franke & Heidecke started over with 72 workers, and by Christmas 1945 the workforce had grown to 172 employees. Everything the company made in 1945 was delivered to the British Ministry of Defence. The difficult supply situation forced Rollei into using lenses from the West German manufacturer Schneider as well. However, this was not a problem as Schneider's quality control was equal to that of Zeiss.

text: After the war, Braunschweig ended up in the

text: British occupation zone

text: . The allied occupying forces wanted Rollei to survive as a company, even helping it procure lenses from Zeiss, which had ended up in the

text: Soviet occupation zone

text: . Franke & Heidecke started over with 72 workers, and by Christmas 1945 the workforce had grown to 172 employees. Everything the company made in 1945 was delivered to the

text: British Ministry of Defence

text: . The difficult supply situation forced Rollei into using lenses from the West German manufacturer Schneider as well. However, this was not a problem as Schneider's quality control was equal to that of Zeiss.

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answer: No

answer: No

answer: No

answer: No

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answer: 1

text: Eyes that remain misaligned can still develop visual problems. Although not a cure for strabismus, prism lenses can also be used to provide some temporary comfort and to prevent double vision from occurring.

text: Eyes that remain misaligned can still develop visual problems. Although not a cure for strabismus,

text: prism

text: lenses can also be used to provide some temporary comfort and to prevent double vision from occurring.

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answers: misaligned

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answers: misaligned

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: Some people may suffer from other visual problems, such as color blindness, reduced contrast, mild amblyopia, cerebral visual impairments, inability to track fast-moving objects, or one of many other visual impairments and still have "normal" visual acuity. Thus, "normal" visual acuity by no means implies normal vision. The reason visual acuity is very widely used is that it is easily measured, its reduction (after correction) often indicates some disturbance, and that it often corresponds with the normal daily activities a person can handle, and evaluates their impairment to do them (even though there is heavy debate over that relationship).

text: Some people may suffer from other visual problems, such as

text: color blindness

text: , reduced

text: contrast

text: , mild

text: amblyopia

text: , cerebral visual impairments, inability to track fast-moving objects, or one of many other visual impairments and still have "normal" visual acuity. Thus, "normal" visual acuity by no means implies normal vision. The reason visual acuity is very widely used is that it is easily measured, its reduction (after correction) often indicates some disturbance, and that it often corresponds with the normal daily activities a person can handle, and evaluates their impairment to do them (even though there is heavy debate over that relationship).

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answers: normal

answer: Yes

answer: Yes

answer: Yes

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text: Near-sightedness, also known as short-sightedness and myopia, is a condition of the eye where light focuses in front of, instead of on, the retina. This causes distant objects to be blurry while close objects appear normal. Other symptoms may include headaches and eye strain. Severe near-sightedness increases the risk of retinal detachment, cataracts, and glaucoma.

text: Near-sightedness, also known as short-sightedness and myopia, is a condition of the

text: eye

text: where light focuses in front of, instead of on, the

text: retina

text: . This causes distant objects to be

text: blurry

text: while close objects appear normal. Other symptoms may include

text: headache

text: s and

text: eye strain

text: . Severe near-sightedness increases the risk of

text: retinal detachment

text: cataract

text: s, and

text: glaucoma

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answers: short-sightedness

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answers: in front of

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answers: short-sightedness

answers: NDQ_018820

answers: in front of

answer: No

answer: No

answer: Yes

answer: No

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answer: 1

text: People have problems with excessive daytime sleepiness (EDS) and impaired alertness. In other words, common effects of sleep apnea include daytime fatigue, a slower reaction time, and vision problems. OSA may increase risk for driving accidents and work-related accidents. If OSA is not treated, people are at increased risk of other health problems, such as diabetes. Even death could occur from untreated OSA due to lack of oxygen to the body.  Moreover, people are examined using "standard test batteries" in order to further identify parts of the brain that may be adversely affected by sleep apnea, including those that govern:

text: People have problems with

text: excessive daytime sleepiness

text: (EDS) and impaired alertness. In other words, common effects of sleep apnea include daytime fatigue, a slower reaction time, and vision problems. OSA may increase risk for driving accidents and work-related accidents. If OSA is not treated, people are at increased risk of other health problems, such as diabetes. Even death could occur from untreated OSA due to lack of oxygen to the body.  Moreover, people are examined using "standard test batteries" in order to further identify parts of the brain that may be adversely affected by sleep apnea, including those that govern:

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answers: 4

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answers: 0

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answers: myopia

answers: NDQ_018818

answers: Myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: out of focus

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Diving masks and helmets solve this problem by providing an air space in front of the diver's eyes. The refraction error created by the water is mostly corrected as the light travels from water to air through a flat lens, except that objects appear approximately 34% bigger and 25% closer in water than they actually are. Therefore, total field-of-view is significantly reduced and eye–hand coordination must be adjusted.

text: Diving masks and

text: helmets

text: solve this problem by providing an air space in front of the diver's eyes. The

text: refraction error

text: created by the water is mostly corrected as the light travels from water to air through a flat lens, except that objects appear approximately

text: 34% bigger and 25% closer

text: in water than they actually are. Therefore, total field-of-view is significantly reduced and eye–hand coordination must be adjusted.

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answers: NDQ_018817

answers: 34% bigger and 25% closer

answers: NDQ_018818

answers: water

answers: NDQ_018819

answers: the refraction error created by the water

answers: NDQ_018820

answers: water

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: There are also safety problems with gun-type weapons. For example, it is inherently dangerous to have a weapon containing a quantity and shape of fissile material that can form a critical mass through a relatively simple accident. Furthermore, if the weapon is dropped from an aircraft into the sea, then the moderating effect of the seawater can also cause a criticality accident without the weapon even being physically damaged. Neither can happen with an implosion-type weapon, since there is normally insufficient fissile material to form a critical mass without the correct detonation of the explosive lenses.

text: There are also safety problems with gun-type weapons. For example, it is inherently dangerous to have a weapon containing a quantity and shape of fissile material that can form a critical mass through a relatively simple accident. Furthermore, if the weapon is dropped from an aircraft into the sea, then the

text: moderating

text: effect of the

text: seawater

text: can also cause a

text: criticality accident

text: without the weapon even being physically damaged. Neither can happen with an implosion-type weapon, since there is normally insufficient fissile material to form a critical mass without the correct detonation of the explosive lenses.

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answers: NDQ_018817

answers: farsightedness

answers: NDQ_018818

answers: myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: insufficient

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Some optometrists take a slightly different view. In 1999 a joint statement by the American Academy of Optometry, the American Optometric Association, the College of Optometrists in Vision Development and Optometric Extension Program Foundation reported: "Many visual conditions can be treated effectively with spectacles or contact lenses alone; however, some are most effectively treated with vision therapy....Research has demonstrated that vision therapy can be an effective treatment option for ocular motility problems, non-strabismic binocular disorders, strabismus, amblyopia, accommodative disorders (and) visual information processing disorders."

text: Some optometrists take a slightly different view. In 1999 a joint statement by the

text: American Academy of Optometry

text: , the

text: American Optometric Association

text: , the

text: College of Optometrists in Vision Development

text: and

text: Optometric Extension Program Foundation

text: reported: "Many visual conditions can be treated effectively with spectacles or contact lenses alone; however, some are most effectively treated with vision therapy....Research has demonstrated that vision therapy can be an effective treatment option for ocular motility problems, non-strabismic binocular disorders, strabismus, amblyopia, accommodative disorders (and) visual information processing disorders."

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answers: NDQ_018817

answers: amblyopia

answers: NDQ_018818

answers: amblyopia

answers: NDQ_018819

answers: amblyopia

answers: NDQ_018820

answers: strabismus

answer: No

answer: No

answer: Yes

answer: No

answer: No

answer: 1

text: The major components of the phoropter are the battery of spherical and cylindrical lenses, auxiliary devices such as Maddox rods, filtered lenses, prisms, and the JCC (Jackson Cross-Cylinder) used for astigmatism measurement. The prismatic lenses are used to analyze binocular vision and treat orthoptic problems.

text: The major components of the phoropter are the battery of spherical and cylindrical lenses, auxiliary devices such as Maddox rods, filtered lenses, prisms, and the JCC (Jackson Cross-Cylinder) used for astigmatism measurement. The

text: prismatic

text: lenses are used to analyze binocular vision and treat

text: orthoptic

text: problems.

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answers: astigmatism

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answers: binocular vision

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answers: NDQ_018820

answers: curved

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: 1

text: In prescriptions for both farsightedness and nearsightedness, the lens curve flattens toward the edge of the glass, except for progressive reading adds for presbyopia, where seamless vari-focal portions change toward a progressively more plus diopter. High minus aspheres for myopes do not necessarily need progressive add portions, because the design of the lens curvature already progresses toward a less-minus/more-plus dioptric power from the center of the lens to the edge.  High plus aspheres for hyperopes progress toward less-plus at the periphery.  The aspheric curvature on high plus lenses are ground on the anterior side of the lens, whereas the aspheric curvature of high minus lenses are ground onto the posterior side of the lens. Progressive add reading portions for plus lenses are also ground onto the anterior surface of the lens. The blended curvature of aspheres reduces scotoma, a ringed blind spot.

text: In prescriptions for both

text: farsightedness

text: and

text: nearsightedness

text: , the lens curve flattens toward the edge of the glass, except for progressive reading adds for

text: presbyopia

text: , where seamless vari-focal portions change toward a progressively more plus

text: diopter

text: . High minus aspheres for myopes do not necessarily need progressive add portions, because the design of the lens curvature already progresses toward a less-minus/more-plus dioptric power from the center of the lens to the edge.  High plus aspheres for hyperopes progress toward less-plus at the periphery.  The aspheric curvature on high plus lenses are ground on the anterior side of the lens, whereas the aspheric curvature of high minus lenses are ground onto the posterior side of the lens. Progressive add reading portions for plus lenses are also ground onto the anterior surface of the lens. The blended curvature of aspheres reduces

text: scotoma

text: , a ringed blind spot.

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answers: hyperopes

answers: NDQ_018818

answers: on the anterior side of the lens

answers: NDQ_018819

answers: myopes

answers: NDQ_018820

answers: periphery

answer: Yes

answer: No

answer: Yes

answer: No

answer: Yes

answer: 1

text: Some common tests that measure visual health include visual acuity tests, refraction tests, visual field tests and colour vision tests. Visual acuity tests are the most common tests and they measure the ability to bring details into focus at different distances. Usually this test is conducted by having participants read a map of letters or symbols while one eye is covered. Refraction tests measure the eye's need for glasses or corrective lenses. This test is able to detect whether a person may be nearsighted or farsighted. These conditions occur when the light rays entering the eye are unable to converge on a single spot on the retina. Both refractive errors require corrective lenses in order to cure blurriness of vision. Visual field tests detect any gaps in peripheral vision. In healthy normal vision, an individual should be able to partially perceive objects to the left or right of their field of view using both eyes at one time. The center field of vision is seen in most detail. Colour vision tests are used to measure one's ability to distinguish colours. It is used to diagnose colour blindness. This test is also used as an important step in some job screening processes as the ability to see colour in such jobs may be crucial. Examples include military work or law enforcement.

text: Some common tests that measure visual health include

text: visual acuity

text: tests, refraction tests,

text: visual field test

text: s and colour vision tests. Visual acuity tests are the most common tests and they measure the ability to bring details into focus at different distances. Usually this test is conducted by having participants read a map of letters or symbols while one eye is covered. Refraction tests measure the eye's need for glasses or

text: corrective lenses

text: . This test is able to detect whether a person may be

text: nearsighted

text: or

text: farsighted

text: . These conditions occur when the light rays entering the eye are unable to converge on a single spot on the

text: retina

text: . Both

text: refractive errors

text: require corrective lenses in order to cure blurriness of vision. Visual field tests detect any gaps in peripheral vision. In healthy normal vision, an individual should be able to partially perceive objects to the left or right of their field of view using both eyes at one time. The center field of vision is seen in most detail. Colour vision tests are used to measure one's ability to distinguish colours. It is used to diagnose colour blindness. This test is also used as an important step in some job screening processes as the ability to see colour in such jobs may be crucial. Examples include military work or law enforcement.

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answers: Refraction tests

answers: NDQ_018818

answers: on a single spot

answers: NDQ_018819

answers: Refraction tests

answers: NDQ_018820

answers: farsighted

answer: Yes

answer: Yes

answer: No

answer: Yes

answer: No

answer: 1

text: Typically, the patient sits behind the phoropter, and looks through it at an eye chart placed at optical infinity (20 feet or 6 metres), then at near (16 inches or 40 centimetres) for individuals needing reading glasses.  The eye care professional then changes lenses and other settings, while asking the patient for subjective feedback on which settings gave the best vision. Sometimes the habitual glasses Rx or an automated refractor is used to provide initial settings for the phoropter, and sometimes a retinoscope is used through the phoropter to measure the vision without the patient having to speak, which is useful for babies and people who don't speak the language of the practitioner.

text: Typically, the patient sits behind the phoropter, and looks through it at an

text: eye chart

text: placed at optical infinity (20 feet or 6 metres), then at near (16 inches or 40 centimetres) for individuals needing reading glasses.  The eye care professional then changes

text: lenses

text: and other settings, while asking the patient for subjective feedback on which settings gave the best

text: vision

text: . Sometimes the habitual glasses Rx or an

text: automated refractor

text: is used to provide initial settings for the phoropter, and sometimes a

text: retinoscope

text: is used through the phoropter to measure the vision without the patient having to speak, which is useful for babies and people who don't speak the language of the practitioner.

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answer: No

answer: No

answer: Yes

answer: No

answer: No

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text: Through the course of this work, Ansgar repeatedly embarks on a new stage in his career following a vision.  According to Rimbert, his early studies and ensuing devotion to the ascetic life of a monk were inspired by a vision of his mother in the presence of Saint Mary.  Again, when the Swedish people were left without a priest for some time, he begged King Horik to help him with this problem; then after receiving his consent, consulted with Bishop Gautbert to find a suitable man. The two together sought the approval of King Louis, which he granted when he learned that they were in agreement on the issue. Ansgar was convinced he was commanded by heaven to undertake this mission, and was influenced by a vision he received when he was concerned about the journey, in which he met a man who reassured him of his purpose and informed him of a prophet that he would meet, the abbot Adalhard, who would instruct him in what was to happen.  In the vision, he searched for and found Adalhard, who commanded, "Islands, listen to me, pay attention, remotest peoples", which Ansgar interpreted as God's will that he go to the Scandinavian countries as "most of that country consisted of islands, and also, when 'I will make you the light of the nations so that my salvation may reach to the ends of the earth' was added, since the end of the world in the north was in Swedish territory".

text: Through the course of this work, Ansgar repeatedly embarks on a new stage in his career following a vision.  According to Rimbert, his early studies and ensuing devotion to the ascetic life of a monk were inspired by a vision of his mother in the presence of Saint Mary.  Again, when the Swedish people were left without a priest for some time, he begged King Horik to help him with this problem; then after receiving his consent, consulted with Bishop Gautbert to find a suitable man. The two together sought the approval of King Louis, which he granted when he learned that they were in agreement on the issue. Ansgar was convinced he was commanded by heaven to undertake this mission, and was influenced by a vision he received when he was concerned about the journey, in which he met a man who reassured him of his purpose and informed him of a prophet that he would meet, the

text: abbot

text: Adalhard

text: , who would instruct him in what was to happen.  In the vision, he searched for and found Adalhard, who commanded, "Islands, listen to me, pay attention, remotest peoples", which Ansgar interpreted as God's will that he go to the Scandinavian countries as "most of that country consisted of islands, and also, when 'I will make you the light of the nations so that my salvation may reach to the ends of the earth' was added, since the end of the world in the north was in Swedish territory".

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answers: in the middle

answer: No

answer: No

answer: No

answer: No

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answer: 1

text: Quincy Magoo (or simply Mr. Magoo) is a cartoon character created at the UPA animation studio in 1949. Voiced by Jim Backus, Quincy Magoo is a wealthy, short-statured retiree who gets into a series of comical situations as a result of his nearsightedness, compounded by his stubborn refusal to admit the problem. However, through uncanny streaks of luck, the situation always seems to work itself out for him, leaving him no worse than before.

text: Quincy Magoo (or simply Mr. Magoo) is a

text: cartoon

text: character created at the

text: UPA

text: animation studio in 1949. Voiced by

text: Jim Backus

text: , Quincy Magoo is a wealthy, short-statured retiree who gets into a series of comical situations as a result of his

text: nearsightedness

text: , compounded by his stubborn refusal to admit the problem. However, through uncanny streaks of luck, the situation always seems to work itself out for him, leaving him no worse than before.

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text: Unlike most other lens mounts, F-mount lenses lock by turning counter-clockwise (when looking at the front of lens) and unlock clockwise. Nearly all F-mount lenses have zoom and focus controls that rotate in the clockwise direction (as viewed from behind the camera) to increase focal length and focus distance respectively. This convention is also used in Pentax K-mount and Sony A-mount lenses but is opposite of the direction normally used by Canon. F-mount lenses also typically have aperture rings that turn clockwise to close.

text: Unlike most other lens mounts, F-mount lenses lock by turning counter-clockwise (when looking at the front of lens) and unlock clockwise. Nearly all F-mount lenses have zoom and focus controls that rotate in the clockwise direction (as viewed from behind the camera) to increase focal length and focus distance respectively. This convention is also used in

text: Pentax K-mount

text: and

text: Sony A-mount

text: lenses but is opposite of the direction normally used by

text: Canon

text: . F-mount lenses also typically have aperture rings that turn clockwise to close.

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answers: 0

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answers: Myopia

answers: NDQ_018818

answers: counter-clockwise

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: counter-clockwise

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Refractive errors are corrected with eyeglasses, contact lenses, or surgery. Eyeglasses are the easiest and safest method of correction. Contact lenses can provide a wider field of vision; however are associated with a risk of infection. Refractive surgery permanently changes the shape of the cornea.

text: Refractive errors are corrected with

text: eyeglass

text: es,

text: contact lenses

text: , or

text: surgery

text: . Eyeglasses are the easiest and safest method of correction. Contact lenses can provide a wider

text: field of vision

text: ; however are associated with a risk of infection.

text: Refractive surgery

text: permanently changes the shape of the cornea.

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answers: 4

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answers: NDQ_018820

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answers: NDQ_018817

answers: Refractive errors

answers: NDQ_018818

answers: wide field of vision

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: permanently changes the shape

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: Near-sightedness is due to the length of the eyeball being too long, far-sightedness the eyeball too short, astigmatism the cornea being the wrong shape, and presbyopia aging of the lens of the eye such that it cannot change shape sufficiently. Some refractive errors are inherited from a person's parents. Diagnosis is by eye examination.

text: Near-sightedness is due to the length of the eyeball being too long, far-sightedness the eyeball too short, astigmatism the cornea being the wrong shape, and presbyopia aging of the

text: lens of the eye

text: such that it cannot change shape sufficiently. Some refractive errors are

text: inherited

text: from a person's parents. Diagnosis is by

text: eye examination

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answers: the eyeball too short

answers: NDQ_018818

answers: the wrong shape

answers: NDQ_018819

answers: the eyeball too short

answers: NDQ_018820

answers: too short

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: The most common way to treat forms of aniseikonia, including macropsia, is through the use of auxiliary optics to correct for the magnification properties of the eyes.  This method includes changing the shape of spectacle lenses, changing the vertex distances with contact lenses, creating a weak telescope system with contact lenses and spectacles, and changing the power of one of the spectacle lenses.  Computer software, such as the Aniseikonia Inspector, has been developed to determine the prescription needed to correct for a certain degree of aniseikonia.  The problem with correction through optical means is that the optics do not vary with field angle and thus cannot compensate for non-uniform macropsia.  Patients have reported significantly improved visual comfort associated with a correction of 5-10% of the aniseikonia.

text: The most common way to treat forms of aniseikonia, including macropsia, is through the use of auxiliary optics to correct for the

text: magnification

text: properties of the

text: eyes

text: .  This method includes changing the shape of spectacle lenses, changing the vertex distances with contact lenses, creating a weak

text: telescope

text: system with

text: contact lenses

text: and

text: spectacles

text: , and changing the power of one of the spectacle lenses.  Computer software, such as the Aniseikonia Inspector, has been developed to determine the prescription needed to correct for a certain degree of aniseikonia.  The problem with correction through optical means is that the optics do not vary with field angle and thus cannot compensate for non-uniform macropsia.  Patients have reported significantly improved visual comfort associated with a correction of 5-10% of the aniseikonia.

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answers: magnification

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: 1

text: Meanwhile, Blair is having problems of his own. Both he and his wife, Cherie, are having financial problems. He is obsessed with his legacy, but neither his former supporters nor the U.S. government — led by President Hillary Clinton — want anything to do with him. Finally, Blair is haunted by disturbing visions of dead Iraqi civilians and British soldiers in the ongoing Iraq War. His troubled conscience makes him try to convert to Catholicism, though in repeated visits to church he finds himself unable to confess to any sins. Blair is portrayed as being partly in denial that a world which once hailed him as a great leader has largely turned against him.

text: Meanwhile, Blair is having problems of his own. Both he and his wife,

text: Cherie

text: , are having financial problems. He is obsessed with his legacy, but neither his former supporters nor the U.S. government — led by President

text: Hillary Clinton

text: — want anything to do with him. Finally, Blair is haunted by disturbing visions of dead Iraqi civilians and British soldiers in the ongoing

text: Iraq War

text: . His troubled conscience makes him try to convert to

text: Catholicism

text: , though in repeated visits to church he finds himself unable to confess to any sins. Blair is portrayed as being partly

text: in denial

text: that a world which once hailed him as a great leader has largely turned against him.

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answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Acuity is a measure of visual performance and does not relate to the eyeglass prescription required to correct vision. Instead, an eye exam seeks to find the prescription that will provide the best corrected visual performance achievable. The resulting acuity may be greater or less than 6/6 = 1.0. Indeed, a subject diagnosed as having 6/6 vision will often actually have higher visual acuity because, once this standard is attained, the subject is considered to have normal (in the sense of undisturbed) vision and smaller optotypes are not tested. Emmetropic subjects with 6/6 vision or "better" (20/15, 20/10, etc.), may still require an eyeglass correction for other problems related to the visual system, such as astigmatism, ocular injuries, or presbyopia.

text: Acuity is a measure of visual performance and does not relate to the eyeglass prescription required to correct vision. Instead, an

text: eye exam

text: seeks to find the prescription that will provide the best corrected visual performance achievable. The resulting acuity may be greater or less than 6/6 = 1.0. Indeed, a subject diagnosed as having 6/6 vision will often actually have higher visual acuity because, once this standard is attained, the subject is considered to have normal (in the sense of undisturbed) vision and smaller optotypes are not tested.

text: Emmetropic

text: subjects with 6/6 vision or "better" (20/15, 20/10, etc.), may still require an eyeglass correction for other problems related to the visual system, such as

text: astigmatism

text: , ocular injuries, or

text: presbyopia

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answers: smaller optotypes

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answers: smaller

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: The Arecont Vision SurroundVideo® series of IP cameras are 180° and 360° panoramic-view products including an 8 MP or 20 MP camera, lenses and IP66 dome housing.

text: The Arecont Vision SurroundVideo® series of IP cameras are 180° and 360° panoramic-view products including an 8 MP or 20 MP camera, lenses and IP66 dome housing.

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answers: farsightedness

answers: NDQ_018818

answers: 360°

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: 180°

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Orthokeratology (also referred to as Ortho-K, Overnight Vision Correction, Corneal Refractive Therapy and CRT), refers to the creation of gas permeable contact lenses that temporarily reshape the cornea to reduce refractive errors such as myopia, hyperopia and astigmatism. This method can be used as an alternative to eyeglasses, refractive surgery, or for those who prefer not to wear contact lenses during the day. Orthokeratology is most often used for candidates with up to -6.00 diopters of myopia.

text: Orthokeratology (also referred to as Ortho-K, Overnight Vision Correction, Corneal Refractive Therapy and CRT), refers to the creation of gas permeable contact lenses that temporarily reshape the cornea to reduce refractive errors such as

text: myopia

text: hyperopia

text: and

text: astigmatism

text: . This method can be used as an alternative to

text: eyeglasses

text: refractive surgery

text: , or for those who prefer not to wear contact lenses during the day. Orthokeratology is most often used for candidates with up to -6.00

text: diopters

text: of myopia.

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answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: An enabling factor in becoming an agile manufacturer has been the development of manufacturing support technology that allows the marketers, the designers and the production personnel to share a common database of parts and products, to share data on production capacities and problems — particularly where small initial problems may have larger downstream effects.  It is a general proposition of manufacturing that the cost of correcting quality issues increases as the problem moves downstream, so that it is cheaper to correct quality problems at the earliest possible point in the process.

text: An

text: enabling factor

text: in becoming an agile manufacturer has been the development of manufacturing support technology that allows the marketers, the designers and the production personnel to share a common database of parts and products, to share data on production capacities and problems — particularly where small initial problems may have larger

text: downstream

text: effects.  It is a general proposition of manufacturing that the cost of correcting quality issues increases as the problem moves downstream, so that it is cheaper to correct quality problems at the earliest possible point in the process.

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answers: myopia

answers: NDQ_018819

answers: small initial problems may have larger downstream effects

answers: NDQ_018820

answers: smaller than the pupil

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Negative relative accommodation (NRA) was proposed by Joseph Kearney of Oxford University in 1967 as a measure of the maximum ability to relax accommodation while maintaining clear, single binocular vision. This measurement is typically obtained by an orthoptist, ophthalmologist or optometrist during an eye examination using a phoropter. After the patient's distance correction is established, he or she is instructed to view small letters on a card 40 cm from the eyes. The examiner adds lenses in +0.25 increments until the patient first reports that they become blurry.  The total value of the lenses added to reach this point is the NRA value. High NRA values (above +2.50) might be evidence to over minus, uncorrected hyperopia or latent hyperopia.

text: Negative relative accommodation (NRA) was proposed by Joseph Kearney of Oxford University in 1967 as a measure of the maximum ability to relax

text: accommodation

text: while maintaining clear, single

text: binocular vision

text: . This measurement is typically obtained by an

text: orthoptist

text: ophthalmologist

text: or

text: optometrist

text: during an

text: eye examination

text: using a

text: phoropter

text: . After the patient's distance correction is established, he or she is instructed to view small letters on a card 40 cm from the

text: eye

text: s. The examiner adds lenses in +0.25 increments until the patient first reports that they become blurry.  The total value of the lenses added to reach this point is the NRA value. High NRA values (above +2.50) might be evidence to over minus, uncorrected

text: hyperopia

text: or latent hyperopia.

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answers: 4

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answers: 0

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answers: hyperopia

answers: NDQ_018818

answers: single binocular vision

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: over minus

answer: No

answer: Yes

answer: No

answer: No

answer: No

answer: 1

text: Diving masks can be fitted with lenses for divers needing optical correction to improve vision. corrective lenses are ground flat on one side and optically cemented to the inside face of the mask lens. This provides the same amount of correction above and below the surface of the water. Bifocal lenses are also available for this application. Some masks are made with removable lenses, and a range of standard corrective lenses are available which can be fitted. Plastic self-adhesive lenses that can be applied to the inside of the mask may fall off if the mask is flooded for a significant period. Contact lenses may be worn under a mask or helmet, but there is some risk of losing them if the mask floods.

text: Diving masks can be fitted with lenses for divers needing optical correction to improve vision. corrective lenses are ground flat on one side and optically cemented to the inside face of the mask lens. This provides the same amount of correction above and below the surface of the water. Bifocal lenses are also available for this application. Some masks are made with removable lenses, and a range of standard corrective lenses are available which can be fitted. Plastic self-adhesive lenses that can be applied to the inside of the mask may fall off if the mask is flooded for a significant period. Contact lenses may be worn under a mask or helmet, but there is some risk of losing them if the mask floods.

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answer: 1

text: Either an ophthalmologist or optometrist, the older term "oculist" was primarily used to describe eye care professionals that are trained and specialized in the eye care field. The difference between an ophthalmologist or an optometrist is made by the specializations they may choose. If the oculist is trained and specialized in treating medical conditions that may affect the eye and result in an eye defect will be referred to as an ophthalmologist. Optometrists, on the other hand, are the eye care professionals that are specialized in only treating eye defects by prescribing the appropriate corrective lenses. They are also referred to as "eye doctors".  The main task of the optometrist is to correct the visual deficiencies with the help of the lenses. The main difference between these two professions is that although both of them may administer eye exams, only the ophthalmologist may solve eye-related problems that may occur in all areas of the eye. Nonetheless, optometrists are specialized in detecting vision problems and correcting them, but they may not perform tasks that ophthalmologists may, such as eye surgery.

text: Either an ophthalmologist or optometrist, the older term "oculist" was primarily used to describe eye care professionals that are trained and specialized in the eye care field. The difference between an ophthalmologist or an optometrist is made by the

text: specializations

text: they may choose. If the oculist is trained and specialized in treating medical conditions that may affect the eye and result in an eye defect will be referred to as an ophthalmologist. Optometrists, on the other hand, are the eye care professionals that are specialized in only treating eye defects by prescribing the appropriate

text: corrective lenses

text: . They are also referred to as "eye doctors".  The main task of the optometrist is to correct the visual deficiencies with the help of the lenses. The main difference between these two professions is that although both of them may administer

text: eye exam

text: s, only the ophthalmologist may solve eye-related problems that may occur in all areas of the eye. Nonetheless, optometrists are specialized in detecting vision problems and correcting them, but they may not perform tasks that ophthalmologists may, such as

text: eye surgery

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text: Radial keratotomy (RK) is a refractive surgical procedure to correct myopia (nearsightedness) that was developed in 1974, by Svyatoslav Fyodorov, a Russian ophthalmologist. Though it has been largely supplanted by newer operations, such as photorefractive keratectomy, LASIK, Epi-LASIK and the phakic intraocular lens, RK remains popular for correction of astigmatism in certain patients.

text: Radial keratotomy (RK) is a

text: refractive surgical procedure

text: to correct

text: myopia

text: (nearsightedness) that was developed in 1974, by

text: Svyatoslav Fyodorov

text: , a

text: Russia

text: n

text: ophthalmologist

text: . Though it has been largely supplanted by newer operations, such as

text: photorefractive keratectomy

text: LASIK

text: Epi-LASIK

text: and the

entity_section: Intraocular lenses for correcting refractive errors

text: phakic intraocular lens

text: , RK remains popular for correction of

text: astigmatism

text: in certain patients.

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text: LASIK or Lasik (laser-assisted in situ keratomileusis), commonly referred to as laser eye surgery or  laser vision correction, is a type of refractive surgery for the correction of myopia, hyperopia, and astigmatism. The LASIK surgery is performed by an ophthalmologist who uses a laser or microkeratome to reshape the eye's cornea in order to improve visual acuity. For most patients, LASIK provides a permanent alternative to eyeglasses or contact lenses.

text: LASIK or Lasik (

text: laser

text: -assisted

text: in situ

text: keratomileusis

text: ), commonly referred to as laser eye surgery or  laser vision correction, is a type of

text: refractive surgery

text: for the correction of

text: myopia

text: hyperopia

text: , and

text: astigmatism

text: . The LASIK surgery is performed by an

text: ophthalmologist

text: who uses a

text: laser

text: or

text: microkeratome

text: to reshape the eye's

text: cornea

text: in order to improve

text: visual acuity

text: . For most patients, LASIK provides a permanent alternative to

text: eyeglasses

text: or

text: contact lens

text: es.

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answer: No

answer: No

answer: No

answer: No

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text: Lenticular eyeglass lenses have been employed to correct extreme hyperopia (farsightedness), a condition often created by cataract surgery when lens implants are not possible. To limit the great thickness and weight that such high-power lenses would otherwise require, all the power of the lens is concentrated in a small area in the center. In appearance, such a lens is often described as resembling a fried egg: a hemisphere atop a flat surface. The flat surface or "carrier lens" has little or no power and is there merely to fill up the rest of the eyeglass frame and to hold or "carry" the lenticular portion of the lens. This portion is typically 40 mm in diameter but may be smaller, as little as 20 mm, in sufficiently high powers. These lenses are generally used for plus (hyperopic) corrections at about 12 diopters or higher. A similar sort of eyeglass lens is the myodisc, sometimes termed a minus lenticular lens, used for very high negative (myopic) corrections.  More aesthetic aspheric lens designs are sometimes fitted.

text: Lenticular

text: eyeglass

text: lenses have been employed to correct extreme

text: hyperopia

text: (farsightedness), a condition often created by

text: cataract

text: surgery when

text: lens implant

text: s are not possible. To limit the great thickness and weight that such high-power lenses would otherwise require, all the

text: power

text: of the lens is concentrated in a small area in the center. In appearance, such a lens is often described as resembling a

text: fried egg

text: : a hemisphere atop a flat surface. The flat surface or "carrier lens" has little or no power and is there merely to fill up the rest of the eyeglass frame and to hold or "carry" the lenticular portion of the lens. This portion is typically 40 mm in diameter but may be smaller, as little as 20 mm, in sufficiently high powers. These lenses are generally used for plus (hyperopic) corrections at about 12

text: diopter

text: s or higher. A similar sort of eyeglass lens is the

text: myodisc

text: , sometimes termed a minus lenticular lens, used for very high negative (

text: myopic

text: ) corrections.  More aesthetic

text: aspheric lens

text: designs are sometimes fitted.

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answer: Yes

answer: Yes

answer: Yes

answer: No

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text: Long-term use of PMMA or thick hydrogel contact lenses has been found to cause corneal warpage (shape distortion), increased eye irritability, photophobia, blurred vision, and persistent haloes. Collectively, these symptoms constitute Corneal Exhaustion Syndrom (CES), which is associated with corneal endothelium abnormalities including edema, polymegethism, irregular mosaic, and pigment deposition. Patients with CES suffer from compromised corneal endothelium resulting from chronic hypoxia and acidosis. These problems can be alleviated by providing a patient with lenses that allow for greater oxygen permeability.

text: Long-term use of PMMA or thick hydrogel contact lenses has been found to cause corneal warpage (shape distortion), increased eye irritability, photophobia, blurred vision, and persistent haloes. Collectively, these symptoms constitute Corneal Exhaustion Syndrom (CES), which is associated with corneal endothelium abnormalities including

text: edema

text: , polymegethism, irregular mosaic, and pigment deposition. Patients with CES suffer from compromised corneal endothelium resulting from chronic hypoxia and

text: acidosis

text: . These problems can be alleviated by providing a patient with lenses that allow for greater oxygen permeability.

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answer: No

answer: No

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answer: 1

text: Gullberg has recently launched the vision of an Integrated Information and Payment Platform for solving traffic problems in urban transport.

text: Gullberg has recently launched the vision of an Integrated Information and Payment Platform for solving traffic problems in urban transport.

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text: Over 17 Major League seasons, Porter had a career batting average of .247 and an on-base percentage of .354 with 188 home runs, 826 RBIs and a .982 fielding percentage. As of the 2009 season, he ranked 21st on the all-time list for home runs by a catcher, ranked as only player to bat with one hand, and 20th for RBIs by a catcher. Porter caught two no-hitters during his career (Jim Colborn in 1977, Bob Forsch's second career no-hitter in 1983). Porter was also notable for being one of the few Major League catchers of his time to wear eyeglasses behind the plate, at a time when most players needing vision correction were using contact lenses.

text: Over 17 Major League seasons, Porter had a career batting average of .247 and an on-base percentage of .354 with 188 home runs, 826 RBIs and a .982

text: fielding percentage

text: . As of the 2009 season, he ranked 21st on the all-time list for home runs by a catcher, ranked as only player to bat with one hand, and 20th for RBIs by a catcher. Porter caught two

text: no-hitter

text: s during his career (

text: Jim Colborn

text: in

text: Bob Forsch

text: 's second career no-hitter in

text: ). Porter was also notable for being one of the few Major League catchers of his time to wear eyeglasses behind the plate, at a time when most players needing vision correction were using contact lenses.

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text: "Andreas Floer's life was tragically interrupted, but his mathematical visions and striking contributions have provided powerful methods which are being applied to problems which seemed to be intractable only a few years ago."

text: "Andreas Floer's life was tragically interrupted, but his mathematical visions and striking contributions have provided powerful methods which are being applied to problems which seemed to be intractable only a few years ago."

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answer: No

answer: No

answer: No

answer: No

answer: No

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text: In 2011, Lensing completed his Level 1 and Level 2 World Rugby (International Rugby Board) coaching certification and began coaching both players and other coaches. He first worked as a Forward Coach with the South African Correctional Services team in 2011.

text: In 2011, Lensing completed his Level 1 and Level 2

text: World Rugby

text: (International Rugby Board) coaching certification and began coaching both players and other coaches. He first worked as a Forward Coach with the South African Correctional Services team in 2011.

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answers: Myopia

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answers: Hyperopia is also called nearsightedness

answers: NDQ_018820

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answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: One typically sees further along the Earth's curved surface than a simple geometric calculation allows for because of refraction error. If the ground, or water, surface is colder than the air above it, a cold, dense layer of air forms close to the surface, causing light to be refracted downward as it travels, and therefore, to some extent, to go around the curvature of the Earth. The reverse happens if the ground is hotter than the air above it, as often happens in deserts, producing mirages. As an approximate compensation for refraction, surveyors measuring longer distances than 300 feet subtract 14% from the calculated curvature error and ensure lines of sight are at least 5 feet from the ground, to reduce random errors created by refraction.

text: One typically sees further along the Earth's curved surface than a simple geometric calculation allows for because of refraction error. If the ground, or water, surface is colder than the air above it, a cold, dense layer of air forms close to the surface, causing light to be refracted downward as it travels, and therefore, to some extent, to go around the curvature of the Earth. The reverse happens if the ground is hotter than the air above it, as often happens in deserts, producing

text: mirage

text: s. As an approximate compensation for refraction, surveyors measuring longer distances than 300 feet subtract 14% from the calculated curvature error and ensure lines of sight are at least 5 feet from the ground, to reduce random errors created by refraction.

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answers: hyperopia is also called nearsightedness

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answers: hotter than the air

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: As with other Pentax DSLRs, the *ist DS uses the Pentax KAF bayonet mount and can use older lenses using the KA-mount without limitations. Original K mount lenses and, with adapter also M42 screw-mount lenses, can be used in manual mode by selecting a menu option. Centre-weighted metering, aperture priority and focus indication are maintained, even with adapter mounted lenses. When using non-auto aperture lenses, a press of the AE-L button with the camera in manual mode will meter the scene and set the shutter speed. Some non-Pentax K-mount lenses have been reported not to mount on the camera, because a plate protecting the aperture stop-down lever is slightly deeper.

text: As with other Pentax DSLRs, the *ist DS uses the

text: Pentax KAF bayonet mount

text: and can use older

text: lenses

text: using the KA-mount without limitations. Original K mount lenses and, with adapter also M42 screw-mount lenses, can be used in manual mode by selecting a menu option. Centre-weighted metering, aperture priority and focus indication are maintained, even with adapter mounted lenses. When using non-auto aperture lenses, a press of the AE-L button with the camera in manual mode will meter the scene and set the shutter speed. Some non-Pentax K-mount lenses have been reported not to mount on the camera, because a plate protecting the aperture stop-down lever is slightly deeper.

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answers: centre-weighted metering, aperture priority and focus indication

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answers: NDQ_018820

answers: slightly deeper

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: A classical problem in computer vision is three-dimensional (3D) reconstruction, where one seeks to infer 3D structure about a scene from two-dimensional (2D) images of it. Practical cameras are complex devices, and photogrammetry is needed to model the relationship between image sensor measurements and the 3D world. In the standard pinhole camera model, one models the relationship between world coordinates

text: A classical problem in computer vision is

text: three-dimensional (3D) reconstruction

text: , where one seeks to infer 3D structure about a scene from two-dimensional (2D) images of it. Practical cameras are complex devices, and

text: photogrammetry

text: is needed to model the relationship between image sensor measurements and the 3D world. In the standard

text: pinhole camera model

text: , one models the relationship between world coordinates

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answers: 3D reconstruction

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answers: 3D reconstruction

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answers: 3D reconstruction

answers: NDQ_018820

answers: pinhole

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: Tandem gait is a gait (method of walking or running) where the toes of the back foot touch the heel of the front foot at each step. Neurologists sometimes ask patients to walk in a straight line using tandem gait as a test to help diagnose ataxia, especially truncal ataxia, because sufferers of these disorders will have an unsteady gait. However, the results are not definitive, because many disorders or problems can cause unsteady gait (such as vision difficulties and problems with the motor neurons or associative cortex). Therefore, inability to walk correctly in tandem gait does not prove the presence of ataxia.

text: Tandem gait is a

text: gait

text: (method of walking or running) where the toes of the back foot touch the heel of the front foot at each step.

text: Neurologist

text: s sometimes ask patients to walk in a straight line using tandem gait as a test to help diagnose

text: ataxia

text: , especially

text: truncal ataxia

text: , because sufferers of these disorders will have an unsteady gait. However, the results are not definitive, because many disorders or problems can cause unsteady gait (such as vision difficulties and problems with the

text: motor neurons

text: or associative

text: cortex

text: ). Therefore, inability to walk correctly in tandem gait does not prove the presence of ataxia.

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answers: Myopia is also called farsightedness

answers: NDQ_018818

answers: unsteady gait

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answers: hyperopia

answers: NDQ_018820

answers: unsteady

answer: No

answer: Yes

answer: No

answer: No

answer: No

answer: 1

text: Carl Kellner was born in Hirzenhain, Wetteraukreis, in Hesse. In 1849 he founded in Wetzlar a company called "Optisches Institut" for the production of lenses and microscopes. Kellner had invented a new achromatic combination of lenses for an eyepiece, published in his treatise Das orthoskopische Ocular, eine neu erfundene achromatische Linsencombination, that was able to produce an image with correct perspective and without the distortions that were usual for other optical instruments of the time. His invention is still useful and known as the Kellner eyepiece.

text: Carl Kellner was born in

text: Hirzenhain

text: Wetteraukreis

text: , in

text: Hesse

text: . In 1849 he founded in

text: Wetzlar

text: a company called "Optisches Institut" for the production of

text: lenses

text: and

text: microscope

text: s. Kellner had invented a new

text: achromatic

text: combination of lenses for an

text: eyepiece

text: , published in his treatise Das orthoskopische Ocular, eine neu erfundene achromatische Linsencombination, that was able to produce an image with correct

text: perspective

text: and without the distortions that were usual for other optical instruments of the time. His invention is still useful and known as the

text: Kellner eyepiece

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answers: correct perspective

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answers: correct perspective

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answers: hyperopia

answers: NDQ_018820

answers: correct perspective

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: As in other aspects of vision, the observer's visual input is generally insufficient to determine the true nature of stimulus sources, in this case their velocity in the real world. In monocular vision for example, the visual input will be a 2D projection of a 3D scene. The motion cues present in the 2D projection will by default be insufficient to reconstruct the motion present in the 3D scene. Put differently, many 3D scenes will be compatible with a single 2D projection. The problem of motion estimation generalizes to binocular vision when we consider occlusion or motion perception at relatively large distances, where binocular disparity is a poor cue to depth. This fundamental difficulty is referred to as the inverse problem.

text: As in other aspects of vision, the observer's visual input is generally insufficient to determine the true nature of stimulus sources, in this case their velocity in the real world. In monocular vision for example, the visual input will be a 2D projection of a 3D scene. The motion cues present in the 2D projection will by default be insufficient to reconstruct the motion present in the 3D scene. Put differently, many 3D scenes will be compatible with a single 2D projection. The problem of motion estimation generalizes to

text: binocular vision

text: when we consider occlusion or motion perception at relatively large distances, where binocular disparity is a poor cue to depth. This fundamental difficulty is referred to as the

text: inverse problem

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answers: binocular disparity

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answers: binocular disparity is a poor cue to depth

answers: NDQ_018820

answers: occluding

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: A phakic intraocular lens (PIOL) is a special kind of intraocular lens that is implanted surgically into the eye to correct myopia (nearsightedness). It is called "phakic" because the eye's natural lens is left untouched. This is in contrast to intraocular lenses that are implanted into eyes after the eye's natural lens has been removed during cataract surgery.

text: A phakic intraocular lens (PIOL) is a special kind of

text: intraocular lens

text: that is implanted surgically into the eye to correct

text: myopia

text: (nearsightedness). It is called "phakic" because the eye's natural lens is left untouched. This is in contrast to intraocular lenses that are implanted into eyes after the eye's natural lens has been removed during

text: cataract

text: surgery.

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answers: left untouched

answer: Yes

answer: Yes

answer: Yes

answer: No

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text: La Marca del Hombre Lobo was filmed in Jan Jacobsen’s Hi-Fi Stereo 70 3-D format. When Sam Sherman learned this, he was persuaded by other investors to hire optical effects maestro Linwood Dunn to create single-strip, over-and-under 35mm prints for American release. The final results were reportedly beautiful to look at when projected through high-quality 3-D lenses (such as those created by Robert V. Bernier for Space-Vision). But a celebrity-studded Hollywood premiere was completely undone when Sherman’s fellow investors provided shoddy acrylic lenses for the projectors!

text: La Marca del Hombre Lobo was filmed in Jan Jacobsen’s Hi-Fi Stereo 70 3-D format. When Sam Sherman learned this, he was persuaded by other investors to hire optical effects maestro

text: Linwood Dunn

text: to create single-strip, over-and-under 35mm prints for American release. The final results were reportedly beautiful to look at when projected through high-quality 3-D lenses (such as those created by

text: Robert V. Bernier

text: for

text: Space-Vision

text: ). But a celebrity-studded Hollywood premiere was completely undone when Sherman’s fellow investors provided shoddy acrylic lenses for the projectors!

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answer: No

answer: No

answer: No

answer: No

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answer: 1

text: The same problems affect modern aircraft as well, but are engineered to be less noticeable. To start with, improvements in materials and design has greatly improved the stiffness of the wing, reducing the magnitude of the problem. Once the plane is built and flown, the flight control software is then adjusted to correct for the loss of control due to aeroelasticity. However, this simply hides the problem; the aeroelasticity still exists and is affecting the overall control authority. To correct this the flight controller uses more control input to offset any loss of effectiveness, which increases the spanwise torque loads on the aircraft's wing.

text: The same problems affect modern aircraft as well, but are engineered to be less noticeable. To start with, improvements in materials and design has greatly improved the stiffness of the wing, reducing the magnitude of the problem. Once the plane is built and flown, the flight control software is then adjusted to correct for the loss of control due to aeroelasticity. However, this simply hides the problem; the aeroelasticity still exists and is affecting the overall control authority. To correct this the flight controller uses more control input to offset any loss of effectiveness, which increases the spanwise torque loads on the aircraft's wing.

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answers: visible

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: It is a neurological and muscular state, where faulty eye coordination causes the brain to interpret incoming information as a visual looming event (i.e. feeling that an object is approaching and might hit the eye). Because this condition is muscular in nature, anything that causes eye cooperation to fail, such as being tired, under the influence of narcotics or alcohol, or even minor differences in eye pressure or eyesight (e.g. nearsightedness), may be the cause of an episode. The trigger is usually a narrow or pointy object which is near enough to cause confusion in the eyes, or which is in front of an undetermined or busy background. Some peer to peer studies have indicated that certain conditions, such as nyctalopia or night blindness, may worsen the syndrome.

text: It is a neurological and muscular state, where faulty eye coordination causes the brain to interpret incoming information as a visual looming event (i.e. feeling that an object is approaching and might hit the eye). Because this condition is muscular in nature, anything that causes eye cooperation to fail, such as being

text: tired

text: , under the

text: influence

text: of

text: narcotics

text: or

text: alcohol

text: , or even minor differences in eye pressure or eyesight (e.g.

text: nearsightedness

text: ), may be the cause of an episode. The

text: trigger

text: is usually a narrow or pointy object which is near enough to cause confusion in the eyes, or which is in front of an

text: undetermined

text: or busy background. Some

text: peer to peer

text: studies have indicated that certain conditions, such as

text: nyctalopia

text: or

text: night blindness

text: , may worsen the syndrome.

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answers: nearsightedness

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answers: narrow or pointy object

answers: NDQ_018819

answers: anything that causes eye cooperation to fail

answers: NDQ_018820

answers: pointy

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1

text: The interpretation of facial expressions and mouthing can be difficult to understand when an individual has a visual impairment. Such problems hinder the ability of people to understand stimuli and translate information pertaining to perception with their brain for analysis. Non-verbal communication is important in effective communication and elders with vision loss are more likely to misinterpret or read the other person's actions in a wrong way. Visual impairments also cause a loss in positive perceptions of the environment around them. This can lead to isolation and possible depression in elderly people. Macular degeneration is a common cause of vision loss in elderly people. It diminishes the macula of the eye, which is responsible for clear vision. It causes progressive loss of central vision and possible loss of colour vision. This degeneration is caused by systemic changes in the circulation of waste products and growth of abnormal vessels around the retina causing the photoreceptors not to receive proper images. Though ageing almost always causes this, other possible effects and risk factors include smoking, obesity, family history and excessive sunlight exposure.

text: The interpretation of facial expressions and mouthing can be difficult to understand when an individual has a

text: visual impairment

text: . Such problems hinder the ability of people to understand stimuli and translate information pertaining to perception with their brain for analysis.

text: Non-verbal communication

text: is important in effective communication and elders with vision loss are more likely to misinterpret or read the other person's actions in a wrong way. Visual impairments also cause a loss in positive perceptions of the environment around them. This can lead to isolation and possible depression in elderly people.

text: Macular degeneration

text: is a common cause of vision loss in elderly people. It diminishes the macula of the eye, which is responsible for clear vision. It causes progressive loss of central vision and possible loss of colour vision. This degeneration is caused by systemic changes in the circulation of waste products and growth of abnormal vessels around the retina causing the photoreceptors not to receive proper images. Though ageing almost always causes this, other possible effects and risk factors include smoking, obesity, family history and excessive sunlight exposure.

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answers: central vision

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answers: Macular degeneration

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answer: Yes

answer: No

answer: Yes

answer: No

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text: Without the focusing power of the lens, the eye becomes very farsighted.  This can be corrected by wearing glasses, contact lenses, or by implant of an artificial lens.  Artificial lenses are described as "pseudophakic."  Also, since the lens is responsible for adjusting the focus of vision to different lengths, patients with aphakia have a total loss of accommodation.

text: Without the focusing power of the lens, the eye becomes

text: very farsighted

text: .  This can be corrected by wearing

text: glasses

text: contact lenses

text: , or by implant of an

text: artificial lens

text: .  Artificial lenses are described as "

text: pseudophakic

text: ."  Also, since the lens is responsible for adjusting the focus of vision to different lengths, patients with aphakia have a total loss of

text: accommodation

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answers: farsighted

answer: Yes

answer: Yes

answer: Yes

answer: Yes

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text: “[Project Censored is]A distant early warning system for society’s problems.” —American Journalism Review

text: “[Project Censored is]A distant early warning system for society’s problems.” —American Journalism Review

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text: :Category:1967 births

text: :Category:1967 births

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text: The vision is critical of aspects of modern representative democracies arguing that the level of political control by the people isn't sufficient. To address this problem parpolity suggests a system of Nested Councils, which would include every adult member of a given society.

text: The vision is critical of aspects of modern representative democracies arguing that the level of political control by the people isn't sufficient. To address this problem parpolity suggests a system of Nested Councils, which would include every adult member of a given society.

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text: Visual impairment, also known as vision impairment or vision loss, is a decreased ability to see to a degree that causes problems not fixable by usual means, such as glasses. Some also include those who have a decreased ability to see because they do not have access to glasses or contact lenses. Visual impairment is often defined as a best corrected visual acuity of worse than either 20/40 or 20/60. The term blindness is used for complete or nearly complete vision loss. Visual impairment may cause people difficulties with normal daily activities such as driving, reading, socializing, and walking.

text: Visual impairment, also known as vision impairment or vision loss, is a decreased ability to

text: see

text: to a degree that causes problems not fixable by usual means, such as

text: glasses

text: . Some also include those who have a decreased ability to see because they do not have access to glasses or

text: contact lens

text: es. Visual impairment is often defined as a best corrected

text: visual acuity

text: of worse than either 20/40 or 20/60. The term blindness is used for complete or nearly complete vision loss. Visual impairment may cause people difficulties with normal daily activities such as driving, reading, socializing, and walking.

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text: Maloney’s research is focused on developing new technologies for vision correction surgery, including the implantable contact lens and the light-adjustable lens implant, and on complications of vision-correction surgery. He has been a principal investigator for fifteen FDA clinical trials. He has a special clinic devoted to treating patients who have had problems with prior vision correction surgery.

text: Maloney’s research is focused on developing new technologies for vision correction surgery, including the implantable contact lens and the light-adjustable lens implant, and on complications of vision-correction surgery. He has been a principal investigator for fifteen FDA clinical trials. He has a special clinic devoted to treating patients who have had problems with prior vision correction surgery.

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answers: myopia

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answers: hyperopia

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answers: unbalanced

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: Yes

answer: 1

text: He entered the Department of Mechanics and Mathematics of the University of Moscow in 1939. When World War II broke, the department was temporarily closed. He participated in the building of defense installations around Moscow, worked at the munitions factory. In 1941 he was conscripted to the Red Army but was dismissed in 1942 for vision problems (severe nearsightedness) and returned to the University.

text: He entered the Department of

text: Mechanics

text: and

text: Mathematics

text: of the

text: University of Moscow

text: in 1939. When

text: World War II

text: broke, the department was temporarily closed. He participated in the building of defense installations around Moscow, worked at the munitions factory. In 1941 he was conscripted to the Red Army but was dismissed in 1942 for vision problems (severe nearsightedness) and returned to the University.

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answers: nearsighted

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: The house was still in the family in 2013: it was owned and occupied by Jon Royal, a great-grandson of Anna E. and Andrew A Johnstone.

text: The house was still in the family in 2013: it was owned and occupied by Jon Royal, a great-grandson of Anna E. and Andrew A Johnstone.

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answers: squished

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 0

text: Far-sightedness is often present from birth, but children have a very flexible eye lens, which helps make up for the problem. In rare instances hyperopia can be due to diabetes, and problems with the blood vessels in the retina.

text: Far-sightedness is often present from birth, but children have a very flexible eye lens, which helps make up for the problem. In rare instances hyperopia can be due to

text: diabetes

text: , and problems with the

text: blood vessels

text: in the

text: retina

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answers: NDQ_018818

answers: far

answers: NDQ_018819

answers: Far-sightedness

answers: NDQ_018820

answers: flexible

answer: Yes

answer: Yes

answer: Yes

answer: No

answer: No

answer: 1

text: Many people with near-sightedness can read comfortably without eyeglasses or contact lenses even after age forty. However, their myopia does not disappear and the long-distance visual challenges remain. Myopes considering refractive surgery are advised that surgically correcting their nearsightedness may be a disadvantage after age forty, when the eyes become presbyopic and lose their ability to accommodate or change focus, because they will then need to use glasses for reading. Myopes with astigmatism find near vision better, though not perfect, without glasses or contact lenses when presbyopia sets in, but the more astigmatism, the poorer the uncorrected near vision.

text: Many people with

text: near-sightedness

text: can read comfortably without eyeglasses or contact lenses even after age forty. However, their myopia does not disappear and the long-distance visual challenges remain. Myopes considering

text: refractive surgery

text: are advised that surgically correcting their nearsightedness may be a disadvantage after age forty, when the eyes become presbyopic and lose their ability to

text: accommodate

text: or change focus, because they will then need to use glasses for reading. Myopes with

text: astigmatism

text: find near vision better, though not perfect, without glasses or contact lenses when presbyopia sets in, but the more astigmatism, the poorer the uncorrected near vision.

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answers: near-sightedness

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answers: change focus

answers: NDQ_018819

answers: Myopia

answers: NDQ_018820

answers: astigmatism

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: Yes

answer: 1

text: When the addition was added in 1964, its more modern design did not go well with the older section, and in the 1980s, a major renovation of the building took place, and this problem was corrected.

text: When the addition was added in 1964, its more modern design did not go well with the older section, and in the 1980s, a major renovation of the building took place, and this problem was corrected.

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answers: NDQ_018817

answers: 4

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answers: 0

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answers: 4

answers: NDQ_018820

answers: 0

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answers: myopia

answers: NDQ_018818

answers: myopia

answers: NDQ_018819

answers: hyperopia

answers: NDQ_018820

answers: unbalanced

answer: No

answer: No

answer: No

answer: No

answer: No

answer: 1