[The visually evoked cortical potentials (VECPs) in optic neuritis (author's transl)].

The visually evoked cortical potentials (VECPs) were examined in 22 patients with optic neuritis. 1. In the acute stage, amplitude and latency time of the VECPs are impaired not only on the affected eye, but often also of the fellow eye. 2. A bilateral disturbance of the VECPs often persists in the recovery period, although psychophysical functions, including color vision remain normal. 3. It follows that in cases of unilateral optic neuritis, demyelinations without clinical evidence may occur in the optic nerve of the fellow eye.