[Early detection in school pupils of needing ophthalmological care and prevention of pseudomyopia].
D000293:Adolescent; D002648:Child; D006801:Humans; D008403:Mass Screening; D008722:Methods; D009216:Myopia / Q000453:epidemiology / Q000517:prevention & control*; D012572:School Health Services; D014787:Vision Tests; D014792:Visual Acuity