A recent study published in the April edition of Archives of Ophthalmology reports that both Cialis ® and Viagra ® are safe for the retina and pose no permanent harm to the vision after a 6 month test. The drugs, or placebo, were given daily for six months. Several parameters were measured including vision, eye pressure and retinal function. No deleterious effects were found. In the past, erectile dysfunction medications have been implicated to cause permanent damage to the eye, specifically to the optic nerve. Associations with other eye disease, including the optic nerve, are felt to be coincidental.
Randall V. Wong, M.D.