Anisometropia and Aniseikonia

Question 1

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

Answer 1

Antimetropia

Question 2

Condition in which the two eyes have

unequal refractive power.

Answer 2

Anisometropia

Question 3

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

Answer 3

Relative anisometropia

Question 4

Condition in

which the refractive status is equal in the two eyes

Answer 4

Isometropia

Question 5

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

Answer 5

Absolute anisometropia

Question 6

Both eyes are astigmatic but of unequal

degree.

Answer 6

Compound Astigmatic Anisometropia

Question 7

Both eyes are ametropic. One eye is

hyperopic and the other is myopic.

Answer 7

Mixed Absolute Anisometropia

Question 8

One eye is normal and the other is

either hypermetropic or myopic.

Answer 8

Simple Absolute Anisometropia

Question 9

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

Answer 9

Simple Astigmatic Anisometropia

Question 10

One eye is normal and the other is

either hypermetropic or myopic.

Answer 10

Compound Absolute Anisometropia

Question 11

When a person is not able to align

both of their eyes under normal conditions

Answer 11

Strabismus

Question 12

Advised for higher degrees of

anisometropia.

Answer 12

Contact Lens

Question 13

Condition in which ocular images are unequal in

size and shape

Answer 13

Aniseikonia

Question 14

A binocular condition

Answer 14

Aniseikonia

Question 15

Eyes have to rotate a different amount to gaze at

the same point in space

Answer 15

Dynamic Aniseikonia

Question 16

Condition in which the size and shape of the

ocular images are equal

Answer 16

Iseikonia

Question 17

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

Answer 17

Meridional

Question 18

Image distortion decreases progressively

in both directions

Answer 18

Barrel

Question 19

Image distortion increases

progressively in both directions

Answer 19

Pincushion

Question 20

Eyes are gazing in a certain direction

Answer 20

Static Iseikonia

Question 21

Lenses which correct aniseikonia and include also

the correction of refractive error.

Answer 21

Iseikonic Lenses

Question 22

Designed iseikonic lenses for aniseikonia

Answer 22

Von Rohr

Question 23

Based on directly comparing perceived

image sizes between the two eyes

Answer 23

Direct comparison method

Question 24

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

Answer 24

Space Eikonometer

Question 25

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

Answer 25

Basic Aniseikonia Test

Question 26

Image difference increases

progressively in one direction

Answer 26

Prismatic

Question 27

The size of one ocular image is

symmetrically larger that the other.

Answer 27

Overall

Question 28

Image size remains the same but there

occurs an oblique distortion of shape.

Answer 28

Oblique

Question 29

A clinical test
mainly used for assessing a patient’s degree of
“binocular vision” and “binocular single vision”.

Answer 29

Worth Four Light Test

Question 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.

Answer 30

iScreen Vision