Document Detail

Effect of color on contrast sensitivity with two different accommodative stimuli.
MedLine Citation:
PMID:  8430005     Owner:  NLM     Status:  MEDLINE    
We studied the influence of color and accommodation on the contrast sensitivity function (CSF). At the same time, we measured the effect of axial chromatic aberration (ACA) on the CSF. The CSF's of two observers were determined using red, green, blue, and white light, at 5- and 0.5-m viewing distances. At 5 m the CSF's were measured with natural vision and also with lenses which compensated the ACA. Results show that the effect of ACA on the CSF is to reduce the sensitivity to blue with respect to the red. The difference in sensitivity between these two colors is between 50 and 150% and varies with the frequency and the subject. When the ACA is compensated the influence of the color on the CSF is very small, in our experiment, and this result is discussed in relation to the compensating effects of chromatic adaptation of the color mechanisms. In near vision, the CSF's were measured with natural vision and also with the lenses required to give the same accommodative stimulus for all colors. We discuss the effect of accommodation on the CSF. For both far and near the results are compared with the CSF with white light.
P Capilla; A Felipe; A Pons; J M Artigas
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Optometry and vision science : official publication of the American Academy of Optometry     Volume:  70     ISSN:  1040-5488     ISO Abbreviation:  Optom Vis Sci     Publication Date:  1993 Jan 
Date Detail:
Created Date:  1993-03-08     Completed Date:  1993-03-08     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8904931     Medline TA:  Optom Vis Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  24-9     Citation Subset:  IM    
Depto. de Optica, Facultad de Fisica, Universitat de Valencia, Burjassot, Spain.
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MeSH Terms
Accommodation, Ocular / physiology*
Color Perception / physiology*
Contrast Sensitivity / physiology*

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

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