Central scotometric plates (Umazume-Ohta) utilizing color confusion resulting from an acquired anomalous color vision.
D003119:Color Perception Tests; D003117:Color Vision Defects / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D008027:Light; D008266:Macula Lutea; D008722:Methods; D008875:Middle Aged; D009902:Optic Neuritis / Q000150:complications; D012162:Retinal Degeneration / Q000150:complications; D012173:Retinitis / Q000150:complications; D012607:Scotoma / Q000175:diagnosis*