[Survey of blindness in a population of 215,174 in the Suzhou area].
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001766:Blindness / Q000453:epidemiology* / Q000209:etiology; D002648:Child; D002681:China; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening; D008875:Middle Aged