title: Visual acuity as related to causes of blindness, age and sex in urban and rural Egyptians.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000375:Aging; D001766:Blindness / Q000453:epidemiology / Q000209:etiology*; D002386:Cataract / Q000150:complications; D002648:Child; D002675:Child, Preschool; D003141:Communicable Diseases / Q000150:complications; D004534:Egypt; D005260:Female; D005901:Glaucoma / Q000150:complications; D006306:Health Surveys; D006801:Humans; D007634:Keratitis / Q000150:complications; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000150:complications; D012423:Rural Health; D012494:Sampling Studies; D012737:Sex Factors; D014505:Urban Population; D014787:Vision Tests; D014792:Visual Acuity