ERIC Number: ED071221
Record Type: Non-Journal
Publication Date: 1972-Aug
Reference Count: N/A
Color Vision Deficiencies in Children. United States.
National Center for Health Statistics (DHEW/PHS), Hyattsville, MD.
Presented are prevalence data on color vision deficiencies (color blindness) in noninstitutionalized children, aged 6-11, in the United States, as estimated from the Health Examination Survey findings on a representative sample of over 7,400 children. Described are the two color vision tests used in the survey, the Ishihara Test for Color Blindness and the American Optical Company's Hardy-Rand-Rittler Pseudoisochromatic Plates, as well as testing methods and quality control. Tables summarize prevalence rates for color vision deficiencies among 6-11 year-old children by age, race, sex, family income, place of residence, and type of defect (red-green or yellow-blue deficiencies). Figures obtained are compared with data from other U.S. and European studies reporting prevalence of color vision deficiencies. (KW)
Descriptors: Demography, Elementary School Students, Exceptional Child Research, Incidence, National Surveys, Statistical Data, Visual Impairments
Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402 (Vital and Health Statistics, Series 11, No. 118, $0.45)
Publication Type: N/A
Education Level: N/A
Authoring Institution: National Center for Health Statistics (DHEW/PHS), Hyattsville, MD.