Blindness prevalence rates in Egypt.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001766:Blindness / Q000175:diagnosis / Q000453:epidemiology* / Q000209:etiology; D002386:Cataract / Q000150:complications / Q000453:epidemiology / Q000209:etiology; D002648:Child; D002675:Child, Preschool; D003141:Communicable Diseases / Q000150:complications; D004534:Egypt; D005260:Female; D006801:Humans; D007634:Keratitis / Q000150:complications / Q000453:epidemiology / Q000209:etiology; D008297:Male; D008875:Middle Aged; D009896:Optic Atrophy / Q000150:complications; D012111:Residence Characteristics; D012494:Sampling Studies; D012737:Sex Factors; D014787:Vision Tests