Visual evoked responses in patients with multiple sclerosis.
The visual evoked response (VER) was evaluated in a series of multiple sclerosis patients and normal subjects. The data showed significant delays in wave peak latencies among the patient evoked responses. The prolonged latencies correlated closely with visual impairment; however, even patients with a previous history of visual impairment, but with no deficits noticeable on examination at the time of study, showed a delay in wave peak latencies. The results further suggest that the VER is primarily altered when there are central field defects.
D002540:Cerebral Cortex / Q000503:physiopathology*; D004569:Electroencephalography; D005071:Evoked Potentials; D006801:Humans; D009103:Multiple Sclerosis / Q000150:complications / Q000503:physiopathology*; D010775:Photic Stimulation; D014786:Vision Disorders / Q000209:etiology; D014792:Visual Acuity; D014793:Visual Cortex / Q000503:physiopathology