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Primary Eye and Vision Care > Aniseikonia > Flashcards

Aniseikonia Flashcards

1
Q

In Greek, aniseikonia is

A

unequal images

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2
Q

• It is a binocular condition, so the image in one eye is perceived as different in size compared to the image in the other eye.

A

Aniseikonia

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3
Q

He discussed the possibility (1903)

A

• C.Hess

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4
Q

He commented upon the probability of unequal image sizes. (1864)

A

• Donders

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5
Q

He designed iseikonic lenses for aniseikonia

A

• Von Rohr

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6
Q

– Condition in which ocular images are unequal in size and shape

A

• Aniseikonia

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7
Q

– Condition in which the size and shape of the ocular images are equal

A

• Iseikonia

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8
Q

– Lenses which correct aniseikonia and include also the correction of refractive error.

A

• Iseikonic Lenses

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9
Q

eyes are gazing in a certain direction

A

• Static Aniseikonia

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10
Q

– eyes have to rotate a different amount to gaze at the same point in space

A

• Dynamic Aniseikonia

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11
Q

combination of overall and meridional is manifested.

A

Compound

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12
Q

the size of one ocular image is symmetrically larger that the other in one meridian only

A

Meridional

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13
Q

the size of one ocular image is symmetrically larger that the other.

A

Overall

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14
Q

Classifications of Aniseikonia

A

Symmetrical and Asymmetrical

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15
Q

― Variation in size differ from different positions of the visual field

A

Asymmetrical

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16
Q

image distortion increases progressively in both directions

A

Pincushion

17
Q

image distortion decreases progressively in both directions

A

Barrel

18
Q

image difference increases progressively in one direction

A

Prismatic

19
Q

image size remains the same but there occurs an oblique distortion of shape.

A

Oblique

20
Q

asymmetric convergence and stereoscopic disparities exists as when viewing the object located to one side.

A

Normal

21
Q

Symmetrical and Asymmetrical

A

Abnormal

22
Q

based on binocular space perception

A

SPACE EIKONOMETRIC METHOD

23
Q

based on directly comparing perceived image sizes between the two eyes

A

DIRECT COMPARISON METHOD

24
Q

instrument for measuring aniseikonia.

A

Space Eikonometer

25
Q

is indicated by the power of the size lens that swings the target back into a frontoparallel plane.

A

amount of aniseikonia

26
Q

test for Aniseikonia provides a manual method to detect and calibrate the Aniseikonic condition.

A

Awaya

27
Q

is an easy-to-use Windows software program to test the aniseikonia of a patient.

A

Basic Aniseikonia Test

28
Q

is a Windows software program for the clinical management of aniseikonia

A

Aniseikonia Inspector

Primary Eye and Vision Care (5 decks)

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