title: [Preventive activities in vision problems of school children].
mesh_terms: D002648:Child; D006266:Health Education; D006293:Health Promotion; D006801:Humans; D012574:Schools; D014786:Vision Disorders / Q000517:prevention & control*; D014792:Visual Acuity
vernacular_title: Ação preventiva em problemas visuais de escolares.