Miguel Coca-Prados, Ph.D., professor of ophthalmology and visual sciences, recently completed a professorship at Pfizer’s Groton laboratories as the 2006 Yale-Pfizer Global Discovery Visiting Professor. Now in its third year, the Visiting Professor Program is a 12-week sabbatical in which an outstanding Yale faculty member consults and conducts research on Pfizer’s campus in southeastern Connecticut. Coca-Prados studies the way in which gene mutations that cause glaucoma alter the normal function of the cells in the eye in which they are expressed.