Bryan Angle, MD

Grene Vision Group has established a long and true tradition of professional excellence, defined by training, experience, state-of-the-art technology and world-class care. Our goal is to enhance the quality of our patients lives by helping them achieve the best vision possible.

Dr. Diana M. Leitner, MD is a fellowship-trained medical retina specialist and vitreoretinal surgeon. She graduated from Oberlin College with a degree in physics, and earned her medical degree from the University of Kansas. Dr. Letiner completed her internship at the University of Kansas-Wichita, and completed ophthalmology residency at Geisinger Medical Center in Pennsylvania, where she served as Chief Resident. She specializes in both office-based and surgical care of the retina and vitreous, including macular degeneration, diabetic retinopathy, retinal vascular occlusions, retinal detachments, uveitis and inflammatory eye disease.

Charles R. Whitfill, MD, is a board-certified ophthalmologist with specialty training in pediatric ophthalmology and adult strabismus. He received his undergraduate and medical degrees from the University of Oklahoma. He then completed his residency at St. Louis University in 1999 and a fellowship in pediatric ophthalmology and adult strabismus at Emory University in Atlanta in 2000. Prior to joining Grene Vision Group in July 2005, he was in private practice in Longview, TX.