Vision anomalies of school children.
D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005139:Eyeglasses; D006801:Humans; D009216:Myopia / Q000453:epidemiology; D012017:Referral and Consultation; D013781:Texas; D014786:Vision Disorders / Q000453:epidemiology*; D014787:Vision Tests / Q000592:standards; D014792:Visual Acuity