Dr. David M. Chacko, MD, PhD is a vitreous and retina specialist who has been a partner at Grene Vision Group since 2001. Dr. Chacko was a professor in the department of Ophthalmology at the University of Nebraska from 1992-2001. At Nebraska, he did extensive research on Diabetic Retinopathy and Age-Related Macular Degeneration, both of which are currently areas of clinical research for him.