NDLI: The correlation between change in near-dissociated phoria and vergence dynamics

Content Provider	IEEE Xplore Digital Library
Author	Kim, E.H. Vicci, V.R. Granger-Donetti, B. Alvarez, T.L.
Copyright Year	2010
Description	Author affiliation: Kessler Institute for Rehabilitation and Private Practice West Orange, Chester, Saddle Brook, Westfield, NJ, USA (Vicci, V.R.) \|\| Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, USA (Kim, E.H.; Alvarez, T.L.) \|\| Department of Vision Sciences, Essilor Research & Development, Saint-Maur, Cedex, France (Granger-Donetti, B.)
Abstract	Visual fatigue is defined as weariness or discomfort localized in either the head or the eye after a visually demanding task. The etiology of visual fatigue is insufficiently understood in vision research. This study investigates the correlation between changes of near-dissociated phoria versus vergence dynamics defined as the ratio of convergence average peak velocity to divergence average peak velocity. Four degree convergence and divergence eye movements as well as phoria levels were recorded using an infrared eye movement monitor from five subjects. Preliminary data show a high correlation between the changes in phoria versus the change in vergence dynamics. Results suggest that the amount of changes in the two parameters, phoria and vergence dynamics, are one of many factors which may infer why some people are more prone to visual fatigue than others.
Starting Page	1
Ending Page	2
File Size	220422
Page Count	2
File Format	PDF
ISBN	9781424468799
e-ISBN	9781424469246
DOI	10.1109/NEBC.2010.5458277
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-03-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Convergence Fatigue Data analysis Algorithm design and analysis Sleep Biomedical engineering Delay Biomedical measurements Instruments Tracking
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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