Exchange thresholds in dichromats.
D003117:Color Vision Defects / Q000503:physiopathology*; D006801:Humans; D010775:Photic Stimulation; D010786:Photoreceptor Cells / Q000503:physiopathology; D012168:Retinal Pigments; D013053:Spectrophotometry; D014785:Vision, Ocular
D012168:Retinal Pigments