John Berdahl

Dr. John Berdahl is a board-certified ophthalmologist who specializes in advanced cataract surgery, corneal surgery, and glaucoma surgery at Vance Thompson Vision. Having performed more than 25,000 eye surgeries around the globe, Dr. Berdahl is regarded as one of the leading international cataract surgeons.

Dr. Berdahl has been involved in numerous FDA monitored clinical trials assessing innovative technologies in ophthalmology and has published extensive research in the fields of glaucoma and cataract surgery. He also founded Equinox, which focuses on the treatment of glaucoma and other progressive eye diseases, as well as several online resources for surgeons and patients. Dr. Berdahl was recognized by the American Medical Association as the Top Young Physician in South Dakota and was also identified as one of the Top 40 Under 40 Ophthalmologists worldwide. Dr. Berdahl earned his M.D. degree from the Mayo Medical School before completing his residency training at Duke University.