[Evoked visual potentials in tapeto-retinal degeneration].

A study of the behaviour of V.E.P. latencies and amplitudes in 247 eyes suffering from different clinical forms of chorio-retinal degenerations is presented. In 147 eyes the E.R.G. and the V.E.R. were simultaneously recorded, and this group was used for studying the relation ship between E.R.G., V.E.P. and visual acuity. The authors are of the opinion that the V.E.P., in that it investigates particularly the macular region, provides a clinical test of real interest in the prognosis of visual acuity in a known clinical context.