Rebound nystagmus

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Identifier Rebound_nystagmus
Title Rebound nystagmus
Subject Cerebellar, Jerk Nystagmus, Gaze Evoked Nystagmus, Rebound Nystagmus
Creator Daniel R. Gold, DO, Departments of Neurology, Ophthalmology, Neurosurgery, Otolaryngology - Head & Neck Surgery, The Johns Hopkins School of Medicine
Description This is a 50-yo-man who presented for dizziness and imbalance. His exam demonstrated choppy smooth pursuit and VOR suppression as well as mild gait ataxia. There was mild right-beating nystagmus in right gaze and left-beating nystagmus in left gaze without vertical gaze-evoked nystagmus. Occasionally, the distinction between physiologic end point nystagmus and pathologic gaze-evoked nystagmus can be difficult to make. In his case, the nystagmus was not particularly robust in either direction, but when he was asked to view an eccentric target for 10-20 seconds and then look back to center, there was clear reversal of the direction of nystagmus, known as rebound nystagmus. Normal people may have 1-2 beats of rebound with prolonged eccentric viewing, but in his case, the rebound nystagmus was quite significant - when this is seen, the examiner can feel confident that the nystagmus seen in eccentric gaze is pathologic (due to cerebellar>brainstem pathology). Number of Videos and legend for each: 1, Patient demonstrating rebound nystagmus after prolonged eccentric viewing
Publisher Spencer S. Eccles Health Sciences Library, University of Utah
Type Image/MovingImage
Format video/mp4
Rights Management Copyright 2016. For further information regarding the rights to this collection, please visit: https://NOVEL.utah.edu/about/copyright
Collection Neuro-ophthalmology Virtual Education Library: NOVEL http://NOVEL.utah.edu
ARK ark:/87278/s6pv9v20
Setname ehsl_novel_gold
Date Created 2016-09-14
Date Modified 2017-12-04
ID 187743
Reference URL https://collections.lib.utah.edu/ark:/87278/s6pv9v20
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