Vision Risk for Viagra Users Researchers at the University of New South Wales in Australia have found Viagra may have long-lasting adverse affects on the vision of some users.
Vision Risk for Viagra Users Vision Risk for Viagra Users Category: retinitis pigmentosa
Vision Risk for Viagra Users 
Bright Ideas in the Fight Against Blindness Scientific advances continue to make the impossible seem possible for people all around the world suffering from retinal degenerative diseases.