Ocular myasthenia: Missed Diagnosis in Neuro-Ophthalmology

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Identifier NOVEL_Cogan_20-3
Title Ocular myasthenia: Missed Diagnosis in Neuro-Ophthalmology
Clinical Signs exodeviation of the right eye, approximately 35 degrees; fixation is steady; visual acuity is 20/15 in both eyes; no fields effects; suppression of vision in right eye; horizontal gaze shows initial high velocity burst with dysmetria and low velocity drift; limited eye movement to approximately 5-10 degrees around primary; intersaccadic fatigue and ocular dysmetria
Subject Ocular myasthenia; Eye movement recordings
Presenting Symptom upward flick of both lids with change of fixation (especially on upgaze); adaptation to ptosis by inclining head approximately 30 degrees backwards and slight furrowing of brow; twitch in both lids, though more prominent in right eye; musculature of lids not too abnormal, with mild weakness in resistance to opening
History 28 year old male; history going back to 16 years of age with development of strabismus and ptosis; tensilon responsive and diagnosed as myasthenia; no results with mesterlone
Treatment Edrophonium; Mesterolone
Disease/Diagnosis Myasthenia Gravis
Creator David G. Cogan, MD (1908-1993), Former Director of Ophthalmology, National Eye Institute
Contributor Primary Fred C. Chu
Contributor Secondary U.S. Department of Health and Human Services. National Institutes of Health. National Eye Institute
Date 1982-11-24
Type Image/MovingImage
Format video/mp4
Source 3/4" Umatic master videotape
Relation is Part of David G. Cogan Collection
Rights Management Copyright 2008. For further information regarding the rights to this collection, please visit: https://NOVEL.utah.edu/about/copyright
Holding Institution Spencer S. Eccles Health Sciences Library, University of Utah, 10 N 1900 E, SLC, UT 84112-5890
Collection Neuro-ophthalmology Virtual Education Library: NOVEL http://NOVEL.utah.edu
Language eng
ARK ark:/87278/s6bp04gf
Setname ehsl_novel_dgc
Date Created 2006-02-24
Date Modified 2017-02-08
ID 177206
Reference URL https://collections.lib.utah.edu/ark:/87278/s6bp04gf
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