You can get a diabetic eye exam at an optometrist’s office, an ophthalmologist’s practice, many primary care clinics, and some community health centers. Both optometrists and ophthalmologists are qualified to perform the dilated eye exam recommended for people with diabetes, and most vision or medical insurance plans cover it. The key is knowing which provider fits your situation and how often you need to go.
Optometrist vs. Ophthalmologist
Either type of eye doctor can perform your diabetic eye exam, but their training differs. An ophthalmologist is a medical doctor (MD or DO) with 12 to 14 years of education and training, including medical school and surgical residency. They can diagnose diabetic retinopathy, perform laser treatments or eye surgery, and manage complications linked to diabetes, high blood pressure, and other systemic conditions.
An optometrist holds a doctor of optometry (OD) degree after completing four years of optometry school on top of undergraduate education. Optometrists perform comprehensive eye exams, detect diabetic retinopathy, and in most states can prescribe medications for certain eye conditions. If your optometrist finds signs of advancing retinopathy or another issue that needs surgical intervention, they’ll refer you to an ophthalmologist.
For a routine annual screening with no known eye complications, an optometrist is a perfectly appropriate choice and often easier to get an appointment with. If you already have diabetic retinopathy or other eye conditions, starting with an ophthalmologist saves you a step.
Primary Care Clinics With Retinal Imaging
A growing number of primary care offices now offer diabetic retinal screening on-site using digital fundus photography. A camera captures images of the back of your eye, and software (sometimes AI-powered) analyzes them for signs of retinopathy. This can happen during a regular diabetes checkup, removing the need for a separate appointment with an eye specialist.
These screenings work well as a first pass, but they have limitations. One family medicine study found that 36% of non-dilated screenings produced images the software couldn’t interpret, particularly in patients over 64. If your screening comes back unreadable or positive for retinopathy, you’ll still need a full dilated exam with an eye specialist. Think of in-office retinal imaging as a convenient net that catches many cases early, not a replacement for a comprehensive eye exam.
How to Find a Provider Near You
The American Academy of Ophthalmology has an online directory at aao.org where you can search by zip code to find board-certified ophthalmologists in your area. The American Optometric Association has a similar tool at aoa.org. Both let you filter by distance.
Your health insurance company’s provider directory is another practical starting point, since it shows you which doctors are in-network and will cost you the least out of pocket. If you have a primary care doctor managing your diabetes, ask for a referral. Many insurance plans require one anyway, and your doctor’s office may already have a specialist they work with regularly.
Insurance and Medicare Coverage
Most health insurance plans cover an annual diabetic eye exam as preventive care, though copays and deductibles vary by plan. Check with your insurer to confirm what’s covered and whether you need a referral.
Medicare Part B covers one eye exam for diabetic retinopathy per year for anyone with diabetes. After you meet your Part B deductible, you pay 20% of the Medicare-approved amount. If the exam happens in a hospital outpatient setting rather than a private office, you’ll also pay a facility copayment. A private ophthalmologist’s or optometrist’s office is typically the cheaper option.
Low-Cost and Free Options
If you’re uninsured or underinsured, several programs can help. Community health centers, many of which are federally funded, sometimes have eye clinics offering free or reduced-cost care. You can find one near you through the Health Resources and Services Administration (HRSA) website. Colleges and universities with optometry or ophthalmology training programs often provide low-cost eye exams performed by supervised students.
A few national programs specifically serve people who can’t afford eye care. EyeCare America offers free comprehensive eye exams and up to one year of follow-up care for adults 18 and older. VSP Eyes of Hope provides no-cost eye care and glasses to people with limited income and no insurance. Lions Clubs International also helps cover eye care costs through local chapters. Your primary care doctor or local health department can often point you toward these resources.
How Often You Need One
The screening schedule depends on your type of diabetes and whether you already have retinopathy. If you have type 2 diabetes, the American Diabetes Association recommends a dilated eye exam at the time of diagnosis, since the disease may have been affecting your eyes for years before you knew you had it. If you have type 1 diabetes, your first exam should happen within five years of diagnosis.
After that initial exam, the standard is once a year. If you’ve had one or more clean annual exams and your blood sugar is well controlled, your eye doctor may stretch the interval to every two years. But if any level of diabetic retinopathy is detected, you need annual exams at minimum. Your doctor may want to see you more frequently depending on severity.
What Happens During the Exam
A diabetic eye exam is more involved than a standard vision check. The core of it is a dilated fundus exam: your eye doctor puts drops in your eyes to widen your pupils, then uses specialized instruments and lenses to examine the retina, the blood vessels feeding it, and the optic nerve at the back of each eye. They’re looking for tiny bulges in blood vessels (microaneurysms), leaking fluid, new abnormal blood vessel growth, and swelling in the central retina.
Some offices also use optical coherence tomography (OCT), a painless scan that creates cross-sectional images of your retina to detect swelling that isn’t visible to the naked eye. Digital retinal photography may be used to document your baseline so changes can be tracked year to year.
The whole appointment typically takes 30 to 60 minutes, with much of that time spent waiting for the dilation drops to take effect.
Planning Around Dilation
The dilation drops blur your near vision and make your eyes very sensitive to light. This effect usually lasts about four hours, though it can vary. You should not plan to drive yourself home. Bring sunglasses, arrange a ride, or be prepared to wait at the office until your vision clears enough to safely read a license plate at the required distance.
If driving is your only option and you refuse to wait, some providers will decline to administer the drops and reschedule your appointment, since dilated driving can affect your insurance coverage and puts you and others at risk. The simplest approach: bring someone with you or schedule the exam when you can use a rideshare or public transit.