Abstract
Visual function comprises three principles: light sensation, color sensation, and minimum separable sensation. Although clinical evaluation of light sensation and visual acuity have been remarkably developed through comprehensive application of various methods, the test methods to evaluate color sensation in the clinical field have not reflected these various significant developments after their recommendation at the International Congress of Ophthalmology in 1933. To date, various research methods in color vision have been invented on the basis of clinical evaluation methods, most of which were limited to laboratory investigations and were not applied to the clinical field. In this review, the author focuses on both the currently clinical available evaluation methods and the clinically applicable methods based on the present laboratory research studies.
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