Anisometropia and Aniseikonia Flashcards

(30 cards)

1
Q

A form of anisometropia in
which one eye is myopic and the other
hyperopic.

A

Antimetropia

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2
Q

Condition in which the two eyes have

unequal refractive power.

A

Anisometropia

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3
Q

The total refraction of
the two eyes can be equal, but the axial length
may be different.

A

Relative anisometropia

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4
Q

Condition in

which the refractive status is equal in the two eyes

A

Isometropia

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5
Q

Condition in
which the refractive power of the two eyes is
unequal.

A

Absolute anisometropia

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6
Q

Both eyes are astigmatic but of unequal

degree.

A

Compound Astigmatic Anisometropia

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7
Q

Both eyes are ametropic. One eye is

hyperopic and the other is myopic.

A

Mixed Absolute Anisometropia

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8
Q

One eye is normal and the other is

either hypermetropic or myopic.

A

Simple Absolute Anisometropia

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9
Q

One
eye is normal and the other has either myopic
or hyperopic astigmatism.

A

Simple Astigmatic Anisometropia

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10
Q

One eye is normal and the other is

either hypermetropic or myopic.

A

Compound Absolute Anisometropia

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11
Q

When a person is not able to align

both of their eyes under normal conditions

A

Strabismus

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12
Q

Advised for higher degrees of

anisometropia.

A

Contact Lens

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13
Q

Condition in which ocular images are unequal in

size and shape

A

Aniseikonia

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14
Q

A binocular condition

A

Aniseikonia

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15
Q

Eyes have to rotate a different amount to gaze at

the same point in space

A

Dynamic Aniseikonia

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16
Q

Condition in which the size and shape of the

ocular images are equal

17
Q

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

18
Q

Image distortion decreases progressively

in both directions

19
Q

Image distortion increases

progressively in both directions

20
Q

Eyes are gazing in a certain direction

A

Static Iseikonia

21
Q

Lenses which correct aniseikonia and include also

the correction of refractive error.

A

Iseikonic Lenses

22
Q

Designed iseikonic lenses for aniseikonia

23
Q

Based on directly comparing perceived

image sizes between the two eyes

A

Direct comparison method

24
Q

Instrument for measuring aniseikonia. Uses as a target a cross with a
small white disc at the center of a black
square at its intersection

A

Space Eikonometer

25
An easy-to-use Windows software program to test the aniseikonia of a patient.
Basic Aniseikonia Test
26
Image difference increases | progressively in one direction
Prismatic
27
The size of one ocular image is | symmetrically larger that the other.
Overall
28
Image size remains the same but there | occurs an oblique distortion of shape.
Oblique
29
A clinical test mainly used for assessing a patient's degree of "binocular vision" and "binocular single vision".
Worth Four Light Test
30
A red reflex is when light is transmitted through the transparent portions of the eye and reflects off the retina, creating a reddish orange reflection in the eyes.
iScreen Vision