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Upbeat Nystagmus

Legend: Video shows a patient with Wernicke encephalopathy with upbeat nystagmus in the central position that, in keeping with the Alexander law, increases in upgaze. Bilateral horizontal ocular motor range limitations are also present, with incomplete right eye abduction and incomplete left eye abduction and adduction.

Duration: 00:52

Associated with: CONTINUUM: Lifelong Learning in Neurology. 25(5):1376-1400, October 2019

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