Suprathreshold contrast perception in functional amblyopia.

摘要: Three experiments were conducted to investigate suprathreshold contrast perception of a group strabismic and anisometropic amblyopes. In the first experiment, simple reaction-time was measured as function sinusoidal gratings. At all levels, amblyopic eyes showed prolonged reaction-times compared non-amblyopic eyes. second perceived gratings using an interocular successive matching paradigm. The third experiment eye by magnitude estimation. results estimation that while observers show large losses sensitivity at threshold, levels is essentially normal or near in eye. Taken together, these suggest that: 1) has higher gain than eye, 2) shows response latencies. Similar can be obtained under conditions peripheral viewing noise masking.