Identifier |
wh_ch17_p872_3 |
Title |
Walsh & Hoyt: Optokinetic Movements |
Creator |
James A. Sharpe, MD, FRCP(C) (1941-2013); Agnes Wong, MD, PhD, FRCSC |
Affiliation |
(AW) University of Toronto |
Subject |
Ocular Motor System; Ocular Motor Systems; Anatomy; Physiology; Optokinetic Movements |
Description |
Summary. Optokinetic smooth eye movements sustain compensatory eye speed at the same speed as the head during low-frequency or prolonged rotations. The VOR responds best to brief, higher-frequency changes in head position. The optokinetic system is the helpmate of the angular VOR in keeping the eyes still in space during low-frequency head motion. Optokinetic slow phases are induced reflexively by large scenes that stimulate much of the retina, whereas smooth pursuit is usually induced by a small moving object with its image located near the fovea. Optokinetic responses are naturally evoked during head motion with the environment stable but also occur with the head still and the visual scene in motion. Sequential slow phases and opposed quick phases represent optokinetic nystagmus (OKN). |
Date |
2005 |
Language |
eng |
Format |
application/pdf |
Type |
Text |
Source |
Walsh and Hoyt's Clinical Neuro-Ophthalmology, 6th Edition |
Relation is Part of |
Walsh and Hoyt's Clinical Neuro-Ophthalmology Walsh and Hoyt's Clinical Neuro-Ophthalmology |
Collection |
Neuro-Ophthalmology Virtual Education Library: Walsh and Hoyt Textbook Selections Collection: https://NOVEL.utah.edu |
Publisher |
Wolters Kluwer Health, Philadelphia |
Holding Institution |
Spencer S. Eccles Health Sciences Library, University of Utah |
Rights Management |
Copyright 2005. For further information regarding the rights to this collection, please visit: https://NOVEL.utah.edu/about/copyright |
ARK |
ark:/87278/s6j4220f |
Setname |
ehsl_novel_whts |
ID |
185995 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6j4220f |