Health science faculty in Winchester, Massachusetts

Welcome to the website of Dr. Jack V. Greiner, DO, a distinguished ophthalmologist, physician, and surgeon located at 955 Main Street, Winchester, Massachusetts. Dr. Greiner is renowned for his comprehensive expertise in eye care, holding three doctoral degrees and serving as an optometrist, teacher, and medical research scientist. With over 30 years of experience in clinical and biomedical research, Dr. Greiner has authored more than 150 scientific publications and holds six U.S. patents in the fields of dry eye treatment and skin care. Dr. Greiner's exceptional educational background includes a Ph.D. in anatomy, postdoctoral research fellowships at prestigious institutions such as Harvard Medical School and the Massachusetts Eye and Ear Infirmary, and a Doctorate in Optometry from the New England College of Optometry. He completed his medical degree at Midwestern University, followed by an ophthalmology residency at Georgetown University Medical Center.