Document Detail

Contrast is enhanced by yellow lenses because of selective reduction of short-wavelength light.
MedLine Citation:
PMID:  10701805     Owner:  NLM     Status:  MEDLINE    
PURPOSE: Although many studies have shown a subjective preference for yellow lenses, there has been little success in determining the clinical nature of this benefit. METHOD: Contrast sensitivity, color vision, accommodative-convergence, and visual acuity were measured in a group of 20 young subjects along with subjective rating of their perception through clear control lenses (380-nm cut-off), yellow lenses (450-nm cut-off), dark yellow lenses (511-nm cut-off), and orange lenses (527-nm cut-off). RESULTS: A systematic detriment to color vision was found to occur with increasing cut-off wavelength of the yellow lenses (p < 0.001) and this was significantly correlated to subjective ratings of color (r = -0.66) and brightness (r = -0.34). Perceived brightness significantly improved for the yellow (450-nm cut-off) lens only (p < 0.001). Although tinted lenses reduced contrast sensitivity to a white on black grating, there was a significant improvement in low to midrange spatial frequencies when measured using a white-on-blue grating. CONCLUSIONS: The detriment in color vision caused by yellow-colored lenses enhances contrast when viewing bright objects against a blue-based background, such as the sky. Contrast of overlying objects is enhanced is due to the selective reduction of short-wavelength light by the yellow lenses.
J S Wolffsohn; A L Cochrane; H Khoo; Y Yoshimitsu; S Wu
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Optometry and vision science : official publication of the American Academy of Optometry     Volume:  77     ISSN:  1040-5488     ISO Abbreviation:  Optom Vis Sci     Publication Date:  2000 Feb 
Date Detail:
Created Date:  2000-03-29     Completed Date:  2000-03-29     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:  73-81     Citation Subset:  IM    
Clinic Research Unit, Victorian College of Optometry, University of Melbourne, Australia.
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MeSH Terms
Accommodation, Ocular / physiology*
Adaptation, Ocular / physiology
Color Perception / physiology*
Contrast Sensitivity*
Visual Acuity / physiology

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