[Studies on spectacles correcting corneal astigmatism for the prevention of progress in myopia. Report II. On the variation of corneal astigmatism].
D000293:Adolescent; D000328:Adult; D001251:Astigmatism / Q000628:therapy*; D002648:Child; D003316:Corneal Diseases / Q000628:therapy*; D005139:Eyeglasses; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D009216:Myopia / Q000517:prevention & control*