Clinical and Oculographic Analysis of Inferior Oblique Myokymia

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Title Clinical and Oculographic Analysis of Inferior Oblique Myokymia
Creator Ji-Yeong Jang, MD; Hyeshin Jeon, MD; Seo-Young Choi, MD; Jae-Hwan Choi, MD; Kwang-Dong Choi, MD
Affiliation Department of Neurology (J-YJ, S-YC, K-DC) and Ophthalmology (HJ), Pusan National University Hospital, Pusan National University School of Medicine and Biomedical Research Institute, Busan, Korea; and Department of Neurology (J-HC), Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Korea
Abstract A 63-year-old man experienced transient vertical oscillopsia lasting several seconds for 2 months. Examination disclosed paroxysmal excyclotorsion of the right eye, spontaneously or triggered by adduction. Eye movements using 3D video-oculography showed intermittent, monocular phasic movements which consisted of excyclotorsion of the right eye mixed with a small amount of supraduction and abduction, and a tonic movement with excyclotorsion and slight elevation. Orbital and brain MRI was unremarkable. Administration of oxcarbazepine markedly decreased the severity and frequency of the episodes. The oculographic characteristics in our patient may indicate that inferior oblique myokymia may be attributed to aberrant, spontaneous discharges in the inferior oblique motor unit.
Subject Diagnostic Techniques, Ophthalmological; Eye Movements; Humans; Imaging, Three-Dimensional; Magnetic Resonance Imaging; Male; Middle Older people; Myokymia; Myokymia; Ocular Motility Disorders; Ocular Motility Disorders; Oculomotor Muscles; Oculomotor Muscles
OCR Text Show
Date 2017-12
Language eng
Format application/pdf
Type Text
Publication Type Journal Article
Source Journal of Neuro-Ophthalmology, December 2017, Volume 37, Issue 4
Collection Neuro-Ophthalmology Virtual Education Library: Journal of Neuro-Ophthalmology Archives: https://novel.utah.edu/jno/
Publisher Lippincott, Williams & Wilkins
Holding Institution Spencer S. Eccles Health Sciences Library, University of Utah
Rights Management © North American Neuro-Ophthalmology Society
ARK ark:/87278/s6mm0rpc
Setname ehsl_novel_jno
ID 1400765
Reference URL https://collections.lib.utah.edu/ark:/87278/s6mm0rpc
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