| Abstract: | A 73-year-old woman presented with classic opsoclonus two weeks following an acute febrile illness. Four weeks later a complete clinical recovery was evident. Six weeks after onset of the problem, or 2 weeks after resolution of the abnormal eye movements, a pattern reversal visual evoked response showed a delayed response in both eyes and had an unusually high amplitude. For the next 2 months the patient complained of occasional blurring of vision. A repeat visual evoked response test after 4 months revealed normal latency and amplitude in both eyes. The possible mechanisms for the visual evoked response abnormality are discussed. |
