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BINOCULAR VISION II > #4 > Flashcards

#4 Flashcards

1
Q

Myopia levels off about the age ______

A

16 years old

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2
Q

Newly corrected child may be found to have a significant ________ at near while wearing lenses

A

esophoria

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3
Q

After the age ______, myopia is reduced to a rate of 0.50D per decade

A

45 years old

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4
Q

Late adult-onset myopia is caused by______

A

None of the choices (nuclear cataract)

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5
Q

Eyestrain in myopes may arise due to ______

A

None of the choices (uncorrected myopia)

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6
Q

These lenses are designed in such a way that the peripheral curves are steeper

A

RGP Lens/RGP

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7
Q

Causes a significant reduction in myopia progression for children who are exophoric at near

A

None of the choices (eso @ near ang naas book)

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8
Q

Designed to reduce the existing amount of myopia by flattening the cornea

A

Orthokeratology/Ortho-k

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9
Q

The average reduction in myopia for ortho-k is _____ for high myopia

A

3.50D

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10
Q

Designed to open loop of accommodation

A

None of the choices(Autorefractor/AR)

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11
Q

Children with _____ are more likely to have deficits in visual perceptual skills

A

Hyperopia

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12
Q

The decrease in gradient index of the lens causes _______

A

Hyperopic Shift

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13
Q

When a child who has symptoms of eyestrain or is falling behind in school, a ______ is suspected

A

None of the choices (latent hyperopia, if walay none of the choices,choose hyperopia lang)

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14
Q

Expected refractive state for children entering school

A

Hyperopia

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15
Q

When a child who has symptoms of eyestrain or is falling behind in school, a ______ should be indicated

A

Wet Refraction

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16
Q

For px’s with _____ add plus at near can greatly increase
demand on NFV

A

High AC/A

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17
Q

The PRA should be slightly _____ than NRA for px to able to read with comfort

A

lower

18
Q

General rule: never prescribe a cylinder that is not seen during _____

A

objective refraction (retinoscopy to be specific)

19
Q

Latent hyperopia tend to become manifest in the _____

A

None of the choices (late 30s & early 40s)

20
Q

They can easily compensate for 0.50D of uncorrected
astigmatism

A

None of the choices (children)

21
Q

Most probable cause is increased tonicity of EOM

A

Basic Esophoria

22
Q

Most probable cause is low tonicity of EOM

A

Basic Exophoria

23
Q

Researchers who deal with ______ believe that AC/A ratio is subject to wide fluctuations

A

Stimulus AC/A Ratio

24
Q

Researchers who deal with ______ believe that AC/A ratio remains constant throughout life

A

Response AC/A Ratio

25
Q

A much better discriminator for esophoria

A

Percival’s Criterion

26
Q

A much better discriminator for exophoria

A

Sheard’s Criterion

27
Q

Drive the relationship between the visual axes toward orthophoria

A

None of the choices (fusion adaptation phenomenon)

28
Q

This can cause latent hyperopia

A

None of the choices

29
Q

Plus/minus flippers is a measure of _____

A

Inertia of accommodation

30
Q

A significantly lowered amplitude, possibility of having sustained head injury

A

Paralysis of Accommodation

31
Q

Px with normal AA but has lag of accommodation with low AC/A

A

None of the choices (Fatigue of Accommodation)

32
Q

Px with normal AA but has lag of accommodation with low AC/A and presence of high exo at near

A

False Convergence Insufficiency

33
Q

Aniseikonia due to differences in cyl power of the two eyes

A

Meridional Aniseikonia

34
Q

Aniseikonia due to differences in sph power of the two eyes

A

Overall Aniseikonia

35
Q

Afocal lens that provide small amounts of magnification that can measure the amount of aniskeikonia

A

None of the choices (size lenses)

36
Q

Aniseikonia is due to difference in the magnification properties of the two correcting lenses of the two eyes

A

Optical Aniseikonia

37
Q

Aniseikonia due to difference in density of the photoreceptors in the two retinas

A

Anatomical Aniseikonia

38
Q

Px with anisometropia having +0.50D and -3.00D will develop

A

None of the choices

39
Q

Px with anisometropia having +0.50D and +3.00D will develop

A

Amblyopia ex anopsia

40
Q

Full correction of anisometropia can be responsible for

A

None of the choices (either or both: differential prismatic effects occuring w/eye movements and induced aniseikonia)

BINOCULAR VISION II (3 decks)

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