Dr. David Grasic

Ophthalmology – Retina Specialist

Edmond, OK

Dr. David J. Grasic is a retina and uveitis specialist with broad experience in both medical and surgical care of complex posterior-segment disease. He earned his medical degree from the University of Zagreb School of Medicine and completed ophthalmology residency at the Sveti Duh Hospital University Eye Clinic in Zagreb. Dr. Grasic went on to advanced subspecialty training, including a medical retina fellowship at the University of Miami/Bascom Palmer Eye Institute and a uveitis fellowship at the National Eye Institute/National Institutes of Health.

Dr. Razek Georges Coussa

Ophthalmology – Retina Specialist

Oklahoma City, OK

Dr. Razek G. Coussa is a vitreoretinal surgeon with broad expertise spanning adult and pediatric retina, inherited retinal diseases, and complex vitreoretinal surgery. Before joining Retina & Vitreous Consultants of Wisconsin, he served as a clinical assistant professor and adult/pediatric vitreoretinal surgeon at the Dean McGee Eye Institute, where he founded a retinal gene therapy center and performed FDA-approved subretinal gene therapy. He now provides comprehensive care for conditions such as macular degeneration, diabetic retinopathy, retinal detachment, and traumatic retinal injuries, while building pediatric and inherited retinal disease programs for patients across Wisconsin. Dr. Coussa completed ophthalmology residency at McGill University and pursued four years of advanced fellowships: Pediatric Ophthalmology and Inherited Retinal Diseases at the Cole Eye Institute (Cleveland Clinic), Medical Retina and Molecular Ophthalmology at the University of Iowa, and Vitreoretinal Diseases and Surgery at the University of Iowa. His background also includes engineering and biomedical training at McGill and an MPhil in Bioscience Enterprise from the University of Cambridge. He is committed to translating research into compassionate, state-of-the-art patient care.