title: Screening children for visual defects.
mesh_terms: D002648:Child; D002662:Child Health Services / Q000592:standards; D002675:Child, Preschool; D006801:Humans; D008403:Mass Screening; D013285:Strabismus / Q000175:diagnosis; D014786:Vision Disorders / Q000517:prevention & control*; D014787:Vision Tests