David Barnhart, O.D., joined Cleveland Clinic in January, 2001. Prior to that, he spent 20 years in private and group medical practice in Ohio and Arizona. He graduated from The Ohio State University College of Optometry in 1980. Dr. Barnhart is a member of the American Optometric Association, the Ohio Optometric Association and the Cleveland Optometric Association. He provides primary eye care for adults and children, with a special interest in contact lenses.