Eye closure and oculopalatal tremor

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Identifier Eye_Closure_and_OPT
Title Eye closure and oculopalatal tremor
Subject Pendular Nystagmus; Oculopalatal Tremor
Creator Daniel R. Gold, DO, Departments of Neurology, Ophthalmology, Neurosurgery, Otolaryngology - Head & Neck Surgery, The Johns Hopkins School of Medicine
Description This patient suffered a traumatic brain injury with brainstem injury resulting in damage to Mollaret's triangle and palatal tremor. Inferior olivary hypertrophy was noted on her MRI, although no vertical and/or torsional pendular nystagmus was present even when observing closely with the ophthalmoscope. However, when she was asked to close her eyes, large amplitude vertical ocular oscillations were appreciated. When her eyes were observed with infrared video goggles in the dark, no oscillations were present; therefore, the oscillations seem to result from the eyelid closure itself rather than removal of visual inputs. This phenomenon has been referred to as palato-ocular or simply ocular synchrony, and the exact mechanism is not well understood. It can be seen in patients who have pendular nystagmus at baseline (see https://collections.lib.utah.edu/details?id=1209725 for example of typical oculopalatal tremor [OPT]-related nystagmus), in addition to patients with palatal tremor and inferior olivary hypertrophy who have no spontaneous nystagmus, as in this particular patient. Jacobs L, Bender MB. Palato-ocular synchrony during eyelid closure. Arch Neurol 1976; 33:289-291.
Imaging 1, Two patients with palatal tremor and oscillations brought out by eye closure
Contributor Daniel R. Gold, D.O.
Publisher Spencer S. Eccles Health Sciences Library, University of Utah
Date 2017
Type Image/MovingImage
Format video/mp4
Rights Management Copyright 2017. 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
Language eng
ARK ark:/87278/s68665bw
Setname ehsl_novel_gold
Date Created 2017-04-04
Date Modified 2018-01-22
ID 1213438
Reference URL https://collections.lib.utah.edu/ark:/87278/s68665bw
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