title: Screening of pre-school children for ocular anomalies. I. Screening methods and their practicability at different ages.
mesh_terms: D000367:Age Factors; D002648:Child; D002652:Child Behavior; D002675:Child, Preschool; D003315:Cornea; D006801:Humans; D007223:Infant; D008403:Mass Screening; D012018:Reflex; D012923:Social Class; D014786:Vision Disorders / Q000453:epidemiology*; D014787:Vision Tests; D014792:Visual Acuity