title: Provoked visual impairment in multiple sclerosis studied by visual evoked responses.
abstract: Pattern-reversal VERs were studied during the visual impairment provoked by exercise in 2 patients with demyelinating optic neuritis. It was found that the transient reduction in visual acuity was correlated  to a transient decrease in the amplitude of the major positive component of the VER, whereas no significant changes could be observed in the latency of the response. The normal VER was not influenced by exercise.
mesh_terms: D000328:Adult; D001831:Body Temperature; D004569:Electroencephalography; D005071:Evoked Potentials; D005260:Female; D006801:Humans; D008297:Male; D009103:Multiple Sclerosis / Q000150:complications*; D009902:Optic Neuritis / Q000150:complications; D005082:Physical Exertion; D014786:Vision Disorders / Q000209:etiology / Q000503:physiopathology*; D014796:Visual Perception