Anisometropia and Aniseikonia Flashcards
It is a Greek word means “Unequal Images”
Aniseikonia
Designed iseikonic lenses for aniseikonia
Von Rohr
Condition in which ocular images are unequal in size and shape
Aniseikonia
Eyes are gazing in a certain direction and images are different in size
Static Aniseikonia
Based on binocular space perception
Space Eikonometric Method
Based on directly comparing perceived image sizes between the two eyes.
Direct Comparison Method
Instrument for measuring aniseikonia
Space Eikonometer
3 commercially available direct comparison tests:
New Aniseikonia Test
Based Aniseikonia Test
Aniseikonia Inspector
A test is an easy-to-use windows software program to test the aniseikonia of a patient
Basic Aniseikonia Test
This solution is similar with solution 3, but now one contact lens is added to restore the compromised visual acuity
Contact-Glasses Combination
This optical solution altering the refractive power of one spectacle lenses.
Glasses only, compromised VA
Image distortion increases progressively in both direction
Pincushion
Variation in size differ from different position s of the visual field
Asymmetrical
Derived from Greek word and made up of four parts
Anisometropia
An -
Iso -
Metr -
Opia -
Not
Equal
Measure
Vision