OSCILLATORY POTENTIALS, FLASH AND PATTERN‐REVERSAL ELECTRORETINOGRAMS IN AMBLYOPIA

Abstract

Oscillatory potentials (OP), flash and pattern-reversal electroretinograms (ERG) were recorded in 8 adult patients with amblyopia (visual acuity .ltoreq. 0.3) and 10 age-matched normal controls. No significant differences were observed in OP between amblyopic and opposite eyes and normal controls. The pattern-reversal ERG were significantly reduced in all amblyopic eyes. No significant side difference was found in the flash ERG. The observed amplitude reduction in the pattern-reversal ERG might reflect dysfunction of the retinal ganglion cells, which are the main source of this type of ERG. No electrophysiological evidence could be demonstrated for a disturbed retinal function prior to the ganglion cell level.