He has been a frequent innovator in vitreoretinal surgery since 1980, while also managing a large clinical practice. His research, in collaboration with Dr. Ferenc Kuhn and Dr. C. Douglas Witherspoon, has focused on vitrectomy advances, innovations in surgery on the human center of vision (the macula, see www.maculasurgery.com), eye trauma (www.eyeinjury.com), diabetic eye disease, strokes of the eye and severe floaters (Degenerative Vitreous Syndrome, DVS).