Medicare Part B covers cataract surgery when medically necessary

Medicare Part B pays for cataract surgery if your doctor determines the cataract is affecting your vision enough to interfere with daily activities. The program covers the surgeon's fee, the facility cost, and the intraocular lens (the artificial lens implanted during surgery). You pay 20 percent of the approved amount after you meet your Part B deductible for the year. If you have a Medigap or Medicare Advantage plan, your out-of-pocket cost may be lower.

The surgery itself is typically done as an outpatient procedure at a hospital or surgical center. Medicare does not cover the cost of the pre-surgery eye exam that determines you need the surgery — that falls under Part B preventive care, which you do not pay for — but it does cover the surgery and related care during recovery.

Key Takeaways

  • Medicare Part B covers the full cost of cataract surgery and the artificial lens when your doctor says the cataract is affecting your vision and daily function.
  • You pay 20 percent of the Medicare-approved amount after meeting your Part B deductible, unless you have additional coverage through Medigap or Medicare Advantage.
  • Premium lens options that correct astigmatism or presbyopia are not covered by Medicare, and you pay the full difference out of pocket if you choose them.
  • The pre-surgery eye exam is covered at no cost, but any glasses or contacts you need after surgery are not covered by Medicare.
  • You must use a Medicare-enrolled surgeon and facility for Medicare to pay; using an out-of-network provider means you pay the full bill yourself.

What Medicare Part B actually pays for

Medicare Part B covers the surgeon's fee, the operating room, anesthesia, and the standard intraocular lens. The standard lens corrects distance vision only. If you need reading glasses or bifocals after surgery, that is your cost. Medicare also covers post-operative visits for the first 90 days after surgery, including any adjustments or complications that arise during that window.

The facility where you have surgery must be Medicare-enrolled. This includes most hospitals and ambulatory surgery centers. If you go to a facility that does not accept Medicare, Medicare will not pay, and you will owe the full bill. Before scheduling, ask your surgeon's office to confirm the facility is Medicare-enrolled.

Your out-of-pocket costs

After you meet your Part B deductible (which changes each year), you pay 20 percent of the Medicare-approved amount for the surgery. The exact amount depends on what Medicare approves in your area, which varies by region. Your surgeon's office can give you an estimate based on your local Medicare rates.

If you have a Medigap policy (supplemental insurance), it typically covers the 20 percent coinsurance, so your out-of-pocket cost may be zero. If you have a Medicare Advantage plan, your costs depend on your specific plan — some have copays instead of coinsurance, and some cover the surgery at no cost. Check your plan documents or call your plan's member services line to find out what you will owe.

Premium lens options you pay for separately

If you want a lens that corrects astigmatism (toric lens) or presbyopia (multifocal lens), Medicare covers only the standard lens. You pay the difference between the standard lens and the premium lens out of pocket. This difference can range widely depending on the lens type and your surgeon, but it is typically $500 to $3,000 per eye.

Some surgeons bundle this cost into their fee; others bill it separately. Ask your surgeon in advance how much the premium lens costs and whether it is included in the surgical fee or billed separately. Get this in writing so there are no surprises at the time of surgery.

How to make sure Medicare will pay

Your eye doctor must document that the cataract is affecting your vision and your daily activities. This is not automatic — the doctor has to note specific symptoms like blurred vision, glare, or difficulty reading or driving. If the note straightforward says "cataract present," Medicare may deny the claim. Ask your eye doctor to be specific about how the cataract is affecting you.

Both your surgeon and the facility must be Medicare-enrolled. You can check enrollment status on the Medicare website (Medicare.gov) by searching for the provider's name. If either is not enrolled, contact your eye doctor and ask for a referral to an enrolled surgeon or facility.

Get a written estimate from your surgeon's office before the procedure. This estimate should show the Medicare-approved amount, your deductible status, and your expected coinsurance. If the estimate does not match what you are told verbally, ask for clarification in writing.

What Medicare does not cover after surgery

Glasses and contact lenses after cataract surgery are not covered by Medicare, even if you need them for reading or distance vision. This includes bifocals, progressive lenses, or any other type of corrective eyewear. You pay for these out of pocket at an optometrist or eyeglasses retailer.

Any vision correction needed more than 90 days after surgery is also your responsibility. If you develop a problem during the 90-day post-operative period, Medicare covers the visit and any treatment needed to address it. After 90 days, routine eye care and any new prescriptions are covered only if they are part of your Part B preventive benefits (like an annual eye exam for certain conditions).

If you have Medicare Advantage instead of Original Medicare

Medicare Advantage plans must cover cataract surgery the same way Original Medicare does, but the out-of-pocket costs and rules may differ. Some plans have a copay instead of coinsurance. Some plans require prior authorization before surgery, meaning your surgeon must get approval from the plan before scheduling. Some plans have network restrictions and will not pay if you use an out-of-network surgeon.

Call your Medicare Advantage plan's member services number (on your insurance card) before scheduling surgery. Ask whether prior authorization is required, what your copay or coinsurance will be, whether your surgeon is in-network, and whether the facility is in-network. Get the answers in writing if possible.

Frequently Asked Questions

Do I need a referral from my primary care doctor to have cataract surgery?

No. Medicare Part B does not require a referral. You can go directly to an eye doctor or ophthalmologist. However, if you have a Medicare Advantage plan, your plan may require a referral. Check your plan documents or call member services to be sure.

What if I have cataracts in both eyes — does Medicare cover surgery on both?

Yes, Medicare covers surgery on both eyes. Typically, surgeons operate on one eye first, wait for it to heal, and then operate on the other eye a few weeks later. You will pay the coinsurance for each surgery separately, so your total out-of-pocket cost will be roughly double (unless you have Medigap or a Medicare Advantage plan that covers coinsurance).

Can I choose which eye to have surgery on first?

Yes, you and your surgeon can decide the order. Most surgeons recommend operating on the eye with worse vision first, but the choice is yours. Medicare will pay for both surgeries regardless of the order.

What happens if my cataract surgery is deemed not medically necessary?

If Medicare denies the claim because your doctor's notes do not show the cataract is affecting your vision, you can appeal. Ask your surgeon's office to submit additional documentation showing how the cataract affects your daily activities. If the appeal is denied, you are responsible for the full bill unless you have other insurance.

Does Medicare cover cataract surgery if I am still working and have employer health insurance?

If you are 65 or older, Medicare is your primary insurance. Your employer plan becomes secondary and pays only what Medicare does not. If you are under 65 and still working, your employer plan is primary and Medicare is secondary. Check with your employer plan first to see what it covers for cataract surgery.