The prevalence of corrective lenses among black and white junior high school students.
D000293:Adolescent; D002648:Child; D005139:Eyeglasses; D005260:Female; D006801:Humans; D008297:Male; D044469:Racial Groups; D012572:School Health Services; D014481:United States; D014786:Vision Disorders / Q000453:epidemiology*