Document Detail


Deuteranomalous color matching in the deuteranopic eye.
MedLine Citation:
PMID:  6974774     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Two observers were classified as deuteranopes by standard tests including two-degree anomaloscope matches. Color matching similar to the Rayleigh type was then carried out for a 10-degree field size at retinal illuminance ranging from 1 to more than 3000 trolands (td). The results show that at the larger field size and higher levels of retinal illuminance, a third independent color-mediating mechanism with the sensitivity of the deuteranomalous cone is participating in the color match. The results also confirm participation of a different third mechanism with rod sensitivity at levels below about 100 td. There is a range of transition between the two as the level increases above 100 td. Therefore large-field color matching in these deuteranopes is trichromatic at the levels tested, not dichromatic, and a third cone system is found to operate at typical photopic light levels under static viewing conditions in a dichromatic eye.
Authors:
M E Breton; W B Cowan
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the Optical Society of America     Volume:  11     ISSN:  0030-3941     ISO Abbreviation:  J Opt Soc Am     Publication Date:  1981 Oct 
Date Detail:
Created Date:  1981-12-21     Completed Date:  1981-12-21     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  7503097     Medline TA:  J Opt Soc Am     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1220-3     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Color Perception Tests
Color Vision Defects / physiopathology*
Humans
Male
Photoreceptor Cells / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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