New York, Feb 19: A prescription drug commonly used to treat age-related vision loss also reverses vision loss caused by diabetes, says a study led by an Indian-origin physician. The drug, Ranibizumab is manufactured and marketed by US-based Genentech Inc. under the trade name Lucentis. ‘We found that Ranibizumab can save the sight of thousands of working-age individuals suffering from diabetic eye disease, as standard treatments such as laser are not as effective,’ said lead author Rohit Varma, director of the University of Southern California (USC) Eye Institute. Diabetic retinopathy and diabetic macular edema are the leading causes of vision