Contrast evoked potentials in strabismic and anisometropic amblyopia.
Steady-state visual evoked potentials were elicited by the appearance/disappearance of sinusoidal gratings of varying spatial frequency for both eyes of amblyopic subjects. The amblyopic eyes showed reduced responses and a phase shift relative to the nonamblyopic eyes across a wide range of spatial frequencies. Both the nonamblyopic and amblyopic eyes showed a linear relationship between the evoked potential amplitude and the logarithm of the stimulus contrast; however, the slope of the line was flatter for the amblyopic eyes.
D000293:Adolescent; D000328:Adult; D000550:Amblyopia / Q000150:complications / Q000503:physiopathology*; D000818:Animals; D002415:Cats; D002648:Child; D002675:Child, Preschool; D005071:Evoked Potentials; D006801:Humans; D010775:Photic Stimulation / Q000295:instrumentation / Q000379:methods; D012030:Refractive Errors / Q000150:complications / Q000503:physiopathology*; D013285:Strabismus / Q000150:complications / Q000503:physiopathology*