What causes blindness and visual impairment?
There are many conditions that can cause blindness and visual impairment, including glaucoma, cataracts, diabetic retinopathy, retinitis pigmentosa, and macular degeneration of aging. Focusing on the causes of blindness or how much a blind person might still see, however, misses the point Montana¹s blind vendors are thoroughly-trained, highly motivated and capable business people who work to support themselves and their families, contribute to their communities and continue to prove that it is respectable to be blind.