title: A re-appraisal of screening for colour vision impairments.
abstract: Screening for colour vision impairments (CVI) has been carried out in schools in the UK since 1934, but little is known about its yield or value. A survey was conducted among Sheffield schoolboys, school nurses and optometrists to determine the benefits of CVI screening. The results indicated that between 4.2 and 5.2% of boys had been identified as having a CVI, compared with the expected prevalence of 8%. Boys were ill-informed about the significance of CVI for careers planning but recognized the potential importance of having this information before making decisions about choice of subjects and examinations. Possible reasons for the low yield of screening are reviewed and alternative strategies are discussed.
authors.affiliation: Department of Community Paediatrics, Children's Hospital, Sheffield, UK.
authors.forename: E
authors.initials: E
authors.lastname: Holroyd
authors.forename: D M
authors.initials: DM
authors.lastname: Hall
mesh_terms: D000293:Adolescent; D002321:Career Choice; D002648:Child; D003117:Color Vision Defects / Q000175:diagnosis / Q000453:epidemiology*; D003430:Cross-Sectional Studies; D004739:England; D019538:Health Care Surveys; D006266:Health Education / Q000379:methods / Q000592:standards; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000706:statistics & numerical data*; D009907:Optometry / Q000379:methods / Q000706:statistics & numerical data; D015995:Prevalence; D015397:Program Evaluation; D012189:Retrospective Studies; D012494:Sampling Studies; D012572:School Health Services / Q000706:statistics & numerical data*