Walsh & Hoyt: Electro-Oculogram (EOG)

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Identifier wh_ch2_p137
Title Walsh & Hoyt: Electro-Oculogram (EOG)
Creator Michael Wall, MD; Chris A. Johnson, MD
Affiliation (MW) University of Iowa, Department of Neurology and Ophthalmology; (CAJ) Devers Eye Institute
Subject Diagnostic Technique, Ophthalmological; Ophthalmologic Surgical Procedures; Ophthalmology; Ophthalmoscopy; Electro-Oculogram (EOG)
Description In 1848, Dubois-Reymond reported that a difference in electric potential of about 6 microvolts was present between the cornea and the back of the eye. It was subsequently appreciated that the human eye acts as a dipole, with the cornea positive with respect to the retina. If two electrodes are placed near the inner and outer canthi respectively, movement of the eye will produce a change in the potential measured between the two electrodes, with the electrode closest to the cornea being more positive. A recording of this potential change produced by movement of the eye is called the electro-oculogram. The EOG consists of two different potentials, one that is sensitive to light, and the other that is insensitive to light.
Date 2005
Language eng
Format application/pdf
Type Text
Relation is Part of Walsh and Hoyt's Clinical Neuro-Ophthalmology Walsh and Hoyt's Clinical Neuro-Ophthalmology
Collection Neuro-ophthalmology Virtual Education Library: NOVEL http://NOVEL.utah.edu
Publisher Wolters Kluwer Health, Philadelphia
Holding Institution Spencer S. Eccles Health Sciences Library, University of Utah, 10 N 1900 E SLC, UT 84112-5890
Rights Management Copyright 2005. For further information regarding the rights to this collection, please visit: https://NOVEL.utah.edu/about/copyright
ARK ark:/87278/s6zp7fnn
Setname ehsl_novel_whts
ID 186696
Reference URL https://collections.lib.utah.edu/ark:/87278/s6zp7fnn
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