title: Orthoptic screening for three- and four-year-olds.
authors: Clayton Health Centre, Manchester.
authors: V C
authors: VC
authors: Fathy
authors: P J
authors: PJ
authors: Elton
mesh_terms: D002675:Child, Preschool; D004739:England; D006801:Humans; D009988:Orthoptics; D012189:Retrospective Studies; D014786:Vision Disorders / Q000517:prevention & control; D015351:Vision Screening; D014792:Visual Acuity