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Chromatic and luminance losses with multiple sclerosis and optic neuritis measured using dynamic random luminance contrast noise

Flanagan, Patrick and Zele, Andrew 2004, Chromatic and luminance losses with multiple sclerosis and optic neuritis measured using dynamic random luminance contrast noise, Ophthalmic & physiological optics, vol. 24, no. 3, pp. 225-233, doi: 10.1111/j.1475-1313.2004.00191.x.

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Title Chromatic and luminance losses with multiple sclerosis and optic neuritis measured using dynamic random luminance contrast noise
Author(s) Flanagan, Patrick
Zele, Andrew
Journal name Ophthalmic & physiological optics
Volume number 24
Issue number 3
Start page 225
End page 233
Publisher Pergamon Press
Place of publication Oxford, England
Publication date 2004-05
ISSN 0275-5408
1475-1313
Keyword(s) colour vision testing
cone-excitation space
luminance vision
multiple sclerosis
optic neuritis
Summary We measured thresholds for detecting changes in colour and in luminance contrast in observers with multiple sclerosis (MS) and/or optic neuritis (ON) to determine whether reduced sensitivity occurs principally in red-green or blue-yellow second-stage chromatic channels or in an achromatic channel. Colour thresholds for the observers with MS/ON were higher in the red-green direction than in the blue-yellow direction, indicating greater levels of red-green loss than blue-yellow loss. Achromatic thresholds were raised less than either red-green or blue-yellow thresholds, showing less luminance-contrast loss than chromatic loss. With the MS/ON observers, blue-yellow and red-green thresholds were positively correlated but increasing impairment was associated with more rapid changes in red-green thresholds than blue-yellow thresholds. These findings indicate that demyelinating disease selectively reduces sensitivity to colour vision over luminance vision and red-green colours over blue-yellow colours.
Language eng
DOI 10.1111/j.1475-1313.2004.00191.x
Field of Research 111399 Ophthalmology and Optometry not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2004, The College of Optometrists
Persistent URL http://hdl.handle.net/10536/DRO/DU:30002646

Document type: Journal Article
Collection: School of Psychology
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