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Proceedings Paper

Novel method for the quantitative measurement of color vision deficiencies
Author(s): Kai Xiong; Minxian Hou; Guanrong Ye
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Paper Abstract

The method is based on chromatic visual evoked potential (VEP) measurement. The equiluminance of color stimulus in normal subjects is characterized by L-cone and M-cone activation in retina. For the deuteranopes and protanopes, only the activations of one relevant remaining cone type should be considered. The equiluminance turning curve was established for the recorded VEPs of the luminance changes of the red and green color stimulus, and the position of the equiluminance was used to define the kind and degree of color vision deficiencies. In the test of 47 volunteers, we got the VEP traces and the equiluminance turning curves, which was in accordance with the judgment by the pseudoisochromatic plate used in clinic. The method fulfills the impersonal and quantitative requirements in color vision deficiencies test.

Paper Details

Date Published: 18 January 2005
PDF: 8 pages
Proc. SPIE 5630, Optics in Health Care and Biomedical Optics: Diagnostics and Treatment II, (18 January 2005); doi: 10.1117/12.572902
Show Author Affiliations
Kai Xiong, Zhejiang Univ. (China)
Minxian Hou, Zhejiang Univ. (China)
Guanrong Ye, Zhejiang Univ. (China)

Published in SPIE Proceedings Vol. 5630:
Optics in Health Care and Biomedical Optics: Diagnostics and Treatment II
Britton Chance; Mingzhe Chen; Arthur E. T. Chiou; Qingming Luo, Editor(s)

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