Dr. O'Neil received his doctorate in Optometry from The New England College of Optometry after earning his Bachelor of Science degree from Bentley University. He has been involved in numerous studies having to do with contact lenses and mast cell stabilization. Dr. O'Neil is an active member of the American Optometric Society, American Optometric Association, and the Massachusetts Society of Optometry. He resides in Harvard with his wife and four children. He spends much of his free time coaching Harvard youth sports, golfing, riding his motorcycle, and mountain biking.