Visual pigments and color blindness.
D003117:Color Vision Defects / Q000503:physiopathology*; D006801:Humans; D010786:Photoreceptor Cells / Q000503:physiopathology*; D012168:Retinal Pigments / Q000502:physiology*; D012243:Rhodopsin / Q000502:physiology
D012168:Retinal Pigments; D012243:Rhodopsin