Visual assessment with preferential looking techniques in mentally retarded children.
An operant preferential looking technique was successfully used for testing of visual acuity in mentally retarded children with visual dysfunction.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003216:Conditioning, Operant; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000150:complications*; D008297:Male; D014786:Vision Disorders / Q000150:complications / Q000175:diagnosis*; D014787:Vision Tests / Q000379:methods*; D014792:Visual Acuity