Surrogate color vision by luster discrimination.
A selective filter, such as the X-chrom lens, which is placed before one eye, serves to create a luminance difference between the two eyes. The amount of the luminance difference is dependent upon the wavelength distribution of the stimulus and could therefore serve as a clue to assist color discrimination. The ability to detect and discriminate levels of luster is investigated. One of three subjects shows a crude ability to discriminate levels of luster. The performance level is such that a filter may aid dichromacy but not anomalous trichromacy.
D003116:Color; D003118:Color Perception / Q000502:physiology*; D005139:Eyeglasses; D006801:Humans; D008027:Light; D014785:Vision, Ocular; D014796:Visual Perception / Q000502:physiology