[Electrophysiologic tests for diagnosis of congenital night blindness].

UNLABELLED

Electrophysiological study in diagnosis of congenital stationary night blindness.

MATERIAL AND METHODS

The goal of this study was to describe a family with X-linked congenital stationary night blindness (CSNB) in which 3 brothers had similar symptoms: night blindness, reduced visual acuity and "negative" type of Flash ERG.

RESULTS

Electrophysiological study permitted to differentiate CSNB from generalized progressive retinal degeneration, what has a prognostic value for these patients.