Anisometropia and Aniseikonia Flashcards
Anisometropia is made up of four Greek words: An-, iso-, metr-, and?
-opia (vision)
It is defined as a condition in
which the refractive status of one eye differs
from that the other.
Anisometropia
It is the condition in which the
refractive status is equal in the two eyes.
Isometropia
It is a form of anisometropia in which one eye is myopic and the other hyperopic.
Antimetropia
This occurs because of differential growth of the eyeball of both eyes. It is hereditary in origin.
Congenital Anisometropia
Although the total refraction of the two eyes is equal, the component elements in each show relatively large
differences.
Relative Anisometropia
Mixed Absolute Anisometropia is also called as?
Antimetropia
When both eyes are astigmatic but of unequal
degree.
Compound Astigmatic Anisometropia
An uneven growth in both eyes is one cause of Anisometropia.
True
Worth-4-dot Test can be used for Anisometropia.
True
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.
Aniseikonia
Condition in which the size and shape of the
ocular images are equal
Iseikonia
Lenses which correct aniseikonia and include also
the correction of refractive error.
Iseikonic Lenses
Eyes have to rotate a different amount to gaze at
the same point in space
Dynamic Aniseikonia
The size of one ocular image is symmetrically larger that the other in one meridian only.
Meridional Aniseikonia
