Border distinctness in amblyopia.
On the basis of the contrast sensitivity loss in amblyopia which mainly affects higher spatial frequencies, one would expect amblyopes to perceive sharp edges as blurred. We show that they perceive sharp edges as sharp and have veridical edge blur perception. Contrary to the currently accepted view, this suggests that the amblyopic visual system is not characterized by a blurred visual representation.
Hess
Robert F
RF
Department of Ophthalmology, McGill Vision Research Unit, McGill University, Que., Montreal, Canada. robert.hess@mcgill.ca
Pointer
Jonathan S
JS
Simmers
Anita
A
Bex
Peter
P
D000550:Amblyopia / Q000503:physiopathology*; D015858:Anisometropia; D015350:Contrast Sensitivity / Q000502:physiology*; D005556:Form Perception / Q000502:physiology; D006801:Humans; D013285:Strabismus; D014796:Visual Perception / Q000502:physiology*