A major cause of blindness is
a. Cataract development
b. Macular degeneration
c. Presbyopia
d. Glaucoma
D
Glaucoma is the asymptomatic increase in intraocular pressure that is a major cause of blindness. Responses A, B, and C all affect vision and visual acuity but are not major causes of blindness. Cataracts (response A) can be surgically removed. Presbyopia (response C) can be treated with corrective lenses or bifocals. Macular degeneration (response B) causes decreased central vision but not blindness.
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