To print: Select File and then Print from your browser's menu
A medical doctor specializing in diseases of the eye. People often get confused between opticians, optometrists, and ophthalmologists.
An optician can fill prescriptions for corrective lenses but does not examine the eyes.
An optometrist has a postgraduate doctorate degree (an OD) from a school of optometry but is not a medical doctor (an MD). Optometrists are primarily responsible for treating refractive disorders such as nearsightedness and prescribing corrective lenses. Although optometrists can sometimes detect and manage other eye disorders, and they can prescribe drugs if they are certified by their state board of optometry, they cannot perform surgery.
An ophthalmologist has a degree from a medical school (an MD) and must have completed three to six years of specialized training in a residency program. Unlike an optometrist, an ophthalmologist is qualified to perform surgery on the eye.
In addition to treating refractive disorders, an ophthalmologist diagnoses and treats diseases of the eye, including different kinds of infections, cataracts (clouding of the lenses), glaucoma (increased pressure inside the eye, leading to damage to the optic nerve), macular degeneration (age-related degeneration of the central part of the vision), and diabetic retinopathy (damage to the blood vessels supplying the retina of the eye). Often, ophthalmologists can detect systemic diseases such as high blood pressure, stroke, and cancer through examination of the eyes. In fact, it is sometimes the ophthalmologist who first discovers that a person has diabetes through changes in the retina.
Eye doctors use a number of tools for examining and evaluating the eye, including the following:
Major health organizations agree that people with diabetes should get an eye examination that includes dilation of the pupil every year to detect diabetic retinopathy. Unfortunately, many people do not get a yearly eye exam; one recent study reported that less than half of all people with diagnosed diabetes had undergone an eye examination in the past year. Currently, despite medical advances in the treatment of diabetic retinopathy, between 12,000 and 24,000 new cases of blindness related to diabetes are reported every year. Many of these could be prevented if problems were diagnosed and treated early. Routine eye examinations can also uncover other serious eye diseases, including cataracts (which are also more common in people with diabetes), glaucoma, and macular degeneration.
Statements and opinions expressed on this Web site are those of the authors and not necessarily those of the publishers or advertisers. The information provided on this Web site should not be construed as medical instruction. Consult appropriate health-care professionals before taking action based on this information.