Colored filters and screens for studying monocular perception in binocular vision.
D003116:Color; D005374:Filtration; D005403:Fixation, Ocular; D006801:Humans; D012607:Scotoma / Q000175:diagnosis; D013285:Strabismus / Q000175:diagnosis*; D014786:Vision Disorders / Q000175:diagnosis*; D014787:Vision Tests / Q000295:instrumentation*