in American Foundation for the Blind, 2001).
What are the leading causes of blindness?
The leading causes of existing cases of blindness are: glaucoma, macular
degeneration, cataract, optic nerve atrophy, diabetic retinopathy and retinitis
pigmentosa. These causes account for 51% of all cases of blindness (National
Society to Prevent Blindness, 1980).
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