The leading causes of visual impairment in low income countries, particularly in Sub-Saharan Africa, are cataracts (50%), glaucoma (15%), corneal opacities (10%), trachoma (6.8%), childhood blindness (5.3%) and river blindness (onchocerciasis 4%).
World Blind Union Head Office 1929 Bayview Avenue Toronto, Ontario Canada M4G3E8
Telephone: 1-416-486-9698 Fax: 1-416-486-8107
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