Prevalence and causes of blindness in urban and rural areas of Egypt.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001766:Blindness / Q000453:epidemiology* / Q000209:etiology; D002386:Cataract / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D004534:Egypt; D005128:Eye Diseases / Q000150:complications*; D005260:Female; D005901:Glaucoma / Q000150:complications*; D006801:Humans; D007634:Keratitis / Q000150:complications* / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000150:complications / Q000453:epidemiology; D009896:Optic Atrophy / Q000150:complications; D012160:Retina; D012162:Retinal Degeneration / Q000150:complications; D012424:Rural Population; D012494:Sampling Studies; D012737:Sex Factors; D014141:Trachoma / Q000150:complications; D014505:Urban Population; D014605:Uveitis / Q000150:complications; D014787:Vision Tests; D014792:Visual Acuity; D014794:Visual Fields