Amblyopia Flashcards
Defect of central vision.
Amblyopia
The most common form of amblyopia.
Strabismic Amblyopia
Result from competitive or inhibitory interaction between neurons carrying the nonfusible inputs from the two eyes.
Strabismic Amblyopia
It develops when unequal refractive error in the two eyes causes the image on the one retina to be chronically defocused.
Anisometropic Amblyopia
Unilateral high myopia (-6D).
Severe amblyopia loss
Result from large, approximately equal, uncorrected refractive error in both eyes of a young chlld.
Isometropic amblyopia
Uncorrected bilateral astigmatism in early childhood may result in loss of resolving ability limited to chronically blurred meridians.
Meridional amblyopia
It is usually caused by congenital or early acquired media opacity.
Stimulus Deprivation Amblyopia
The least common but most damaging and difficult to treat.
Stimulus Deprivation Amblyopia
Form of deprivation caused by excessive therapeutic patching.
Occlusion amblyopia
Allow the examiner to test the crowding phenomenon with isolated optotype.
Crowding bar/ contour interaction bars
Cataracts capable of producing amblyopia require surgery without unnecessary delay.
Cataract removal
Optical prescription for amblyopic eyes should not correct the full refractive error as determined with cycloplegia.
Refractive correction
The most powerful means of treating of amblyopia by enforced use of the defective eye.
Occlusion and optical degradation
Should generally be used only when constant strabismus eliminates any possibility of useful binocular vision.
Full time patching
