Identifier |
20080311_nanos_posters_056.pdf |
Title |
Square Wave Jerks in Chiari Type II Malformation |
Creator |
Salman, Michael; Sharpe, James; Dennis, Maureen; Steinbach, Martin |
Affiliation |
(MSS) Children's Hospital and University of Manitoba, Winnipeg, Canada; (JS) University Health Network, University of Toronto, Toronto, Ontario, Canada; (MD) The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada; (MS) Vision Science Research Program, University of Toronto, Ontario, Canada |
Subject |
Eye Movements; Fixation Stability; Chiari Type II Malformation; Children |
Description |
Chiari type II malformation (CII) is a congenital deformity of the cerebellum and brainstem. Square wave jerks (SWJ) are horizontal involuntary saccadic intrusions that interrupt fixation. Each SWJ is composed of an initial saccade that moves the fovea away from the intended position of fixation, followed after an interval by a saccade in the opposite direction, which re-foveates the fixation position. Cerebellar disorders may be associated with frequent SWJ or saccadic oscillations such as ocular flutter. The effects of CII deformity on fixation stability have not been investigated previously. |
Date |
2008-03-11 |
Language |
eng |
Format |
application/pdf |
Type |
Text |
Source |
2008 North American Neuro-Ophthalmology Society Annual Meeting |
Relation is Part of |
NANOS 2008: Poster Presentations |
Collection |
Neuro-ophthalmology Virtual Education Library: NOVEL http://NOVEL.utah.edu |
Publisher |
Spencer S. Eccles Health Sciences Library, University of Utah |
Holding Institution |
North American Neuro-Ophthalmology Association. NANOS Executive Office 5841 Cedar Lake Road, Suite 204, Minneapolis, MN 55416 |
Rights Management |
Copyright 2010. For further information regarding the rights to this collection, please visit: https://NOVEL.utah.edu/about/copyright |
ARK |
ark:/87278/s6x95hqh |
Context URL |
The NANOS Annual Meeting Neuro-Ophthalmology Collection: https://novel.utah.edu/collection/NAM/toc/ |
Setname |
ehsl_novel_nam |
ID |
180881 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6x95hqh |