Sustained blepharoclonus upon eye closure.
A unique case of sustained, rhythmical contractions of both orbicularis oculi induced by voluntary eye closure is described. It was observed in a 25-year-old man who had suffered a severe head trauma. The lid phenomenon was synchronous with macro square-wave jerks. Sustained blepharoclonus upon eye closure is likely to be related to dysfunction in the cerebellar system.
D000328:Adult; D001284:Atrophy; D001764:Blepharospasm / Q000175:diagnosis*; D001930:Brain Injuries / Q000150:complications; D001933:Brain Stem / Q000473:pathology; D004576:Electromyography; D004585:Electrooculography; D005141:Eyelid Diseases / Q000175:diagnosis*; D006801:Humans; D008297:Male; D009119:Muscle Contraction; D009207:Myoclonus / Q000175:diagnosis*; D012438:Saccades