Medicare Part B covers eye exams only if your doctor diagnoses an eye disease

Medicare Part B pays for an eye exam when a doctor finds or suspects a medical condition affecting your eyes — glaucoma, cataracts, diabetic retinopathy, or macular degeneration, for example. It does not pay for a routine eye exam done only to check your vision or update your glasses prescription. The distinction matters: one is treatment for disease, the other is preventive vision screening.

If your eye doctor diagnoses a condition during an exam, Part B covers the exam itself and related tests like tonometry (glaucoma screening) or optical coherence tomography (OCT) imaging. You pay 20 percent of the Medicare-approved amount after you meet your Part B deductible. The eye doctor must be enrolled in Medicare for this coverage to explore.

Routine eye exams — the kind you get to see if you need new glasses — are not covered by Part B at all. For those, you would need to pay out of pocket or use a separate vision insurance plan if you have one.

Key Takeaways

  • Medicare Part B covers eye exams only when a doctor suspects or diagnoses an eye disease, not for routine vision checks or glasses prescriptions.
  • You pay 20 percent of the Medicare-approved cost after meeting your Part B deductible when an exam is medically necessary.
  • Routine eye exams, glasses, and contact lenses are covered only through a separate vision plan or Medicare Advantage plan that includes vision benefits.
  • Diabetic retinopathy screening is covered once per year if you have diabetes, even without symptoms.
  • Cataract surgery and related exams are covered by Part B when medically necessary.

What counts as a medically necessary eye exam under Part B

A medically necessary eye exam is one where your doctor has a clinical reason to examine your eyes — you have symptoms, a known eye disease, or risk factors that warrant screening. If you have diabetes, Part B covers one dilated eye exam per year to screen for diabetic retinopathy, even if you have no symptoms. If you have glaucoma or a family history of glaucoma, an exam to monitor or screen for the disease is covered. If you report blurred vision, floaters, flashes of light, or eye pain, an exam to investigate those symptoms is covered.

The key is that the exam must be ordered by a doctor (ophthalmologist or optometrist) as part of diagnosing or managing a medical condition. An exam done purely to update your glasses prescription or check whether your vision has changed does not meet this standard, even if you see an eye doctor during the same visit.

What Medicare Part B does not cover for vision

Routine eye exams are not covered. Glasses, contact lenses, and frames are not covered. Eye exams to determine your prescription for glasses or contacts are not covered. Refractive surgery (LASIK) is not covered. Cosmetic eye procedures are not covered.

If you want coverage for these services, you have two options. You can purchase a standalone vision insurance plan — many are available through private insurers and typically cost $10 to $25 per month. Or, if you have a Medicare Advantage plan (Part C), check whether it includes vision benefits; many do, though coverage and costs vary widely by plan.

How to know if your eye exam will be covered

Before your appointment, call your eye doctor's office and tell them you have Medicare Part B. Ask whether they are enrolled in Medicare and whether they expect the exam to be medically necessary (based on your symptoms or condition) or routine. If the office is unsure, ask them to contact Medicare to verify coverage for your specific situation.

Bring your Medicare card to the appointment. After the exam, the doctor's office will submit a claim to Medicare. If the exam is deemed routine rather than medically necessary, Medicare will deny the claim and you will receive a notice explaining why. At that point, you are responsible for the full cost unless you have other insurance.

If you receive a denial notice and believe the exam was medically necessary, you have the right to appeal. The notice will explain how to file an appeal and the important date for doing so.

Vision coverage through Medicare Advantage plans

Many Medicare Advantage plans (Part C) include vision benefits that cover routine eye exams, glasses, and contact lenses. Coverage varies: some plans cover one routine exam per year, others cover two. Some cover a set dollar amount toward glasses or contacts each year (often $100 to $200), others cover a percentage of the cost. Some plans cover both an ophthalmologist and an optometrist; others restrict you to in-network providers.

If you are considering a Medicare Advantage plan, review the vision benefits section of the plan's Summary of Benefits and Coverage document. This document lists what is covered, what you pay, and which providers are in-network. You can compare plans on Medicare.gov during the annual enrollment period (October 15 to December 7 each year).

If you already have a Medicare Advantage plan, log into your plan's website or call the member services number on your card to find out what vision benefits you have and which eye doctors are in-network.

Standalone vision insurance as an alternative

If you have Original Medicare (Part A and Part B) and want coverage for routine eye exams and glasses, you can purchase a standalone vision plan from a private insurer. Plans are available through companies like VSP, EyeMed, and Humana, among others. Most cover one routine exam per year and provide a set dollar amount (typically $100 to $200) toward glasses or contacts annually.

Premiums range from about $10 to $25 per month depending on the plan and your location. Some plans have no deductible; others have a small one. When you enroll, you choose from a network of eye doctors and retailers. If you go out of network, you pay more or the plan does not cover the visit at all.

You can enroll in a standalone vision plan at any time during the year — there is no enrollment window. However, plans often have waiting periods (30 to 90 days) before they cover exams or glasses, so coverage does not begin when ready after you sign up.

Special situations: diabetic eye exams and cataract surgery

If you have diabetes, Medicare Part B covers one dilated eye exam per year to screen for diabetic retinopathy. This is covered even if you have no symptoms and even if you have not been diagnosed with eye disease. You do not need a referral; you can schedule the exam directly with an eye doctor. You pay 20 percent of the Medicare-approved cost after your Part B deductible.

If you are diagnosed with cataracts, Part B covers the exam, imaging, and the surgery itself. It also covers the intraocular lens (the artificial lens implanted during surgery) and one pair of glasses or contact lenses after surgery to help you adjust to your new vision. Glasses or contacts beyond that first pair are not covered.

Frequently Asked Questions

Will Medicare Part B pay for my annual eye exam to check if I need new glasses?

No. Part B covers eye exams only when a doctor suspects or diagnoses a medical eye condition. An exam done solely to update your glasses prescription is considered routine and is not covered. If you want coverage for routine exams and glasses, you would need a separate vision plan or a Medicare Advantage plan with vision benefits.

I have glaucoma. Does Part B cover my eye exams?

Yes. Exams to monitor or screen for glaucoma are medically necessary and covered by Part B. You pay 20 percent of the Medicare-approved cost after your deductible. Make sure your eye doctor is enrolled in Medicare so the claim processes correctly.

What should I do if Medicare denies my eye exam claim?

You will receive a notice explaining why the claim was denied. If you believe the exam was medically necessary, you can appeal. The notice includes instructions and a important date for filing. You can also call Medicare at 1-800-MEDICARE to ask about the denial before you appeal.

Can I use a Medicare Advantage plan's vision benefits instead of Part B for eye exams?

Yes. If your Medicare Advantage plan covers routine eye exams, you can use that benefit instead of Part B. However, if you need an exam for a medical condition, Part B may cover it even if your plan's routine vision benefit does not. Check your plan's coverage details to understand what is included.

Do I need a referral from my primary care doctor to get an eye exam covered by Part B?

No. You can schedule an eye exam directly with an ophthalmologist or optometrist without a referral. However, the doctor must determine that the exam is medically necessary for Part B to cover it.