Cerebellar Degeneration with Downbeat Nystagmus Provoked by Convergence

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Identifier DBN with convergence
Title Cerebellar Degeneration with Downbeat Nystagmus Provoked by Convergence
Creator Daniel R. Gold, DO
Affiliation (DRG) Departments of Neurology, Ophthalmology, Neurosurgery, Otolaryngology - Head & Neck Surgery, Emergency Medicine, and Medicine, The Johns Hopkins School of Medicine, Baltimore, Maryland
Subject Convergence Abnormal; Cerebellar Pathology; Jerk Nystagmus; Downbeat Nystagmus
Description Description: This is a 70-yo-woman with a progressive gait disorder, diagnosed with cerebellar ataxia. She displayed typical cerebellar ocular motor signs including gaze-evoked nystagmus, choppy pursuit and VOR suppression, and there was very subtle spontaneous downbeat nystagmus, best appreciated with ophthalmoscopy. When asked to converge, there was clear downbeat nystagmus - this is suggestive of involvement of the utricle-ocular motor pathways centrally. When vertical nystagmus is provoked by convergence, a posterior fossa lesion should be evaluated for. Patients with Wernicke's may also have vertical nystagmus that's only brought with convergence, or their baseline upbeat nystagmus may transition to downbeat with convergence, or vice versa. Number of Figures and legend for each: 0 Number of Videos and legend for each: 1, Patient with idiopathic cerebellar degeneration with downbeat nystagmus brought out by convergence.
Date 2016
Language eng
Format video/mp4
Type Image/MovingImage
Collection Neuro-Ophthalmology Virtual Education Library: Dan Gold Neuro-Ophthalmology Collection: https://novel.utah.edu/Gold/
Publisher North American Neuro-Ophthalmology Society
Holding Institution Spencer S. Eccles Health Sciences Library, University of Utah, 10 N 1900 E SLC, UT 84112-5890
Rights Management Copyright 2016. For further information regarding the rights to this collection, please visit: https://NOVEL.utah.edu/about/copyright
ARK ark:/87278/s6bk4n0v
Setname ehsl_novel_gold
ID 187738
Reference URL https://collections.lib.utah.edu/ark:/87278/s6bk4n0v
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