Distribution of visual acuity in Egypt.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001766:Blindness / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D004534:Egypt; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012111:Residence Characteristics; D012424:Rural Population; D012494:Sampling Studies; D012737:Sex Factors; D014505:Urban Population; D014787:Vision Tests; D014792:Visual Acuity; D014794:Visual Fields