[A stistical analysis of astigmatism].
D000293:Adolescent; D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D001251:Astigmatism / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013223:Statistics as Topic