An ophthalmologist is a medical doctor (MD) or a doctor of osteopathic medicine (DO) who specializes in eye and vision care. Ophthalmologists are trained to perform eye exams, diagnose and treat disease, prescribe medications and perform eye surgery. They also write prescriptions for eyeglasses and contact lenses.
Ophthalmologists generally complete four years of college, four years of medical school, one year of internship, and a minimum of three years of hospital-based residency in ophthalmology.
An optometrist is an eye doctor who has earned the Doctor of Optometry (OD) degree. Optometrists examine eyes for both vision and health problems, and correct refractive errors by prescribing eyeglasses and contact lenses. Some optometrists also provide low vision care and vision therapy