HEALTH TOPICS 
On call: Viagra and vision
On call
Viagra and vision
Q. My wife and I have recently been reassured that Viagra is safe for my heart. But a new worry has emerged: Is it safe for my eyes?
A. Because Viagra (sildenafil) is so familiar to nearly all Americans, it's easy to forget that it is a relatively new drug. Viagra was approved by the FDA in March 1998, and the other erectile dysfunction (ED) pills are even newer; Levitra (vardenafil) was approved in August 2003 and Cialis (tadalafil) in November 2003.
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