A REDUCED MOTION AFTEREFFECT IN STRABISMIC AMBLYOPIA

The motion aftereffect was measured using both static and dynamic test stimuli in a group of normal observers and a group of strabismic ambl yopes. Amblyopes exhibited a reduced direct aftereffect for both stati c and dynamic stimuli and only two of the eight amblyopes exhibited an y measurable interocular transfer for either test stimulus. It is hard to explain these results in terms of either the known spatial (contra st sensitivity and positional sensitivity) or motion deficits previous ly reported in amblyopia. These results suggest a primary motion defic it in amblyopia affecting both the static and dynamic motion aftereffe cts. (C) 1997 Elsevier Science Ltd.