Medicare covers cataract surgery as a medically necessary procedure, but your out-of-pocket cost depends on which part of Medicare you have and whether you choose an in-network surgeon.

Medicare Part B covers the surgery itself, the intraocular lens (the artificial lens placed in your eye), and related care before and after the procedure. You pay 20 percent of the approved amount after you meet your Part B deductible. If you have a Medigap or Medicare Advantage plan, your additional costs may be lower or covered entirely.

The total approved amount varies by location and surgeon, but typically ranges from $3,000 to $4,500 per eye under Medicare's fee schedule. Your actual bill depends on whether your surgeon accepts Medicare assignment — meaning they accept Medicare's approved amount as full payment.

Key Takeaways

  • Medicare Part B covers cataract surgery and the artificial lens, but you pay 20 percent of the approved amount after meeting your annual deductible.
  • Surgeons who accept Medicare assignment cannot bill you more than Medicare's approved amount, protecting you from surprise bills.
  • If you have a Medigap plan, it typically covers the 20 percent coinsurance; if you have Medicare Advantage, your costs depend on your plan's rules.
  • Premium lens options that correct astigmatism or presbyopia are not covered by Medicare and cost extra if you choose them.
  • You should confirm your surgeon accepts Medicare assignment before scheduling to avoid paying more than the approved amount.

How Medicare Part B Covers the Surgery and Lens

Medicare Part B pays for the surgical procedure, the intraocular lens, anesthesia, and facility fees. The approved amount is set by Medicare and varies by geographic region. In most areas, the approved amount for one eye ranges from $3,000 to $4,500, though this can be higher in some regions and lower in others.

You are responsible for 20 percent of the approved amount after you have paid your Part B deductible for the year (currently $240 in 2024, though this changes annually). If the approved amount is $3,500, you would pay $700 after your deductible is met. If you have not yet met your deductible, you pay the full deductible first, then 20 percent of the remaining approved amount.

The lens itself — a standard monofocal lens that corrects distance vision — is included in the surgery cost. You do not pay extra for the basic lens. However, if you choose a premium lens that corrects astigmatism (toric lens) or allows you to see at multiple distances without glasses (multifocal lens), Medicare does not cover the additional cost, and you pay the difference out of pocket.

What Happens If Your Surgeon Does Not Accept Medicare Assignment

A surgeon who accepts Medicare assignment agrees to accept Medicare's approved amount as full payment and cannot bill you for the difference. This protects you from unexpected bills. Most surgeons who perform cataract surgery accept Medicare assignment because it is standard practice in ophthalmology.

If a surgeon does not accept assignment, they can bill you for the difference between their fee and Medicare's approved amount — a practice called "balance billing." For example, if Medicare's approved amount is $3,500 and the surgeon charges $4,500, you could be responsible for the extra $1,000 plus your 20 percent coinsurance. Before scheduling surgery, ask your surgeon's office directly whether they accept Medicare assignment. This is a straightforward yes-or-no question, and they should answer it clearly.

Your Costs With Medigap or Medicare Advantage

If you have a Medigap plan (supplemental insurance), your coverage depends on which plan you hold. Most Medigap plans cover the 20 percent coinsurance you would normally pay, meaning your out-of-pocket cost for cataract surgery is limited to your Part B deductible. Plans G, N, and F (if you enrolled before 2020) typically cover this coinsurance. You should check your plan documents or call your Medigap insurer to confirm.

If you have Medicare Advantage (Part C), your costs work differently. Your plan sets its own rules for specialist visits and surgery. Some Medicare Advantage plans cover cataract surgery with a copay (typically $0 to $250 per eye), while others require coinsurance. You must use an in-network surgeon, or you may pay more or receive no coverage. Check your plan's summary of benefits or call the plan before scheduling to learn your exact cost.

Premium Lens Options and Out-of-Pocket Costs

Medicare covers only the standard monofocal lens, which corrects distance vision. If you want to reduce your dependence on glasses after surgery, you have options that Medicare does not cover.

A toric lens corrects astigmatism in addition to distance vision and typically costs $1,500 to $3,000 extra per eye. A multifocal lens allows you to see at multiple distances — near, intermediate, and far — without glasses and typically costs $2,000 to $4,000 extra per eye. Some surgeons offer extended depth of focus (EDOF) lenses, which fall between standard and multifocal lenses in cost and function, ranging from $1,500 to $2,500 per eye.

If you choose a premium lens, you pay the full difference between the premium lens cost and what Medicare covers for the standard lens. This is separate from your 20 percent coinsurance on the base surgery. For example, if you choose a multifocal lens at $3,000 extra and the surgery's approved amount is $3,500, you pay your 20 percent coinsurance on the $3,500 ($700) plus the full $3,000 premium lens cost, totaling $3,700 out of pocket.

Timing and Pre-Surgery Requirements

Medicare requires that your surgeon document that cataract surgery is medically necessary — meaning your cataracts are affecting your vision enough to warrant surgery. Your eye doctor will perform a visual acuity test and document the cataract's severity. This is not a special approval step; it is standard documentation that happens during your pre-surgery evaluation.

You do not need to obtain prior authorization from Medicare before cataract surgery. Your surgeon's office handles the billing directly with Medicare. However, if you have Medicare Advantage, your plan may require pre-authorization, so check with your plan before scheduling.

If you are having both eyes done, Medicare covers both surgeries. Most surgeons space them one to two weeks apart so your first eye heals before surgery on the second eye. Your 20 percent coinsurance applies to each eye separately, so if you have not met your Part B deductible, you may pay it twice if the surgeries fall in different calendar years.

How to Confirm Your Costs Before Surgery

Before scheduling cataract surgery, take these steps to understand what you will pay. First, confirm that your surgeon accepts Medicare assignment by calling their office directly. Ask them to state it clearly in writing if possible.

Second, ask your surgeon's office for an estimate of the approved amount Medicare will pay for your surgery. They can look this up using your zip code and the procedure code. Third, calculate your out-of-pocket cost: determine whether you have met your Part B deductible for the year, then add 20 percent of the approved amount. If you have Medigap or Medicare Advantage, contact your supplemental plan to learn what they cover.

Fourth, if you are considering a premium lens, ask your surgeon for the exact cost of the lens you are interested in and confirm it is not covered by Medicare. Request an itemized estimate that separates the base surgery cost from the premium lens cost so you understand what Medicare covers and what you pay.

Frequently Asked Questions

Do I need Medicare approval before cataract surgery?

No. Medicare does not require prior authorization for cataract surgery. Your surgeon documents that the surgery is medically necessary during your pre-surgery visit, and your surgeon's office bills Medicare directly. If you have Medicare Advantage, your plan may require pre-authorization, so check with your plan first.

What if I choose a premium lens — does Medicare cover any of it?

No. Medicare covers only the standard monofocal lens. If you choose a toric, multifocal, or EDOF lens, you pay the entire difference out of pocket. This cost is separate from your 20 percent coinsurance on the base surgery.

Can I have cataract surgery on both eyes at the same time?

Most surgeons perform cataract surgery on one eye at a time, spacing them one to two weeks apart. Medicare covers both surgeries, and your 20 percent coinsurance applies to each eye. If the surgeries fall in different calendar years, you may pay your Part B deductible twice.

What if my surgeon charges more than Medicare's approved amount?

If your surgeon accepts Medicare assignment, they cannot charge you more than the approved amount. If they do not accept assignment, they can balance bill you for the difference. Always confirm in advance that your surgeon accepts Medicare assignment.

Does my Medigap plan cover cataract surgery?

Most Medigap plans cover the 20 percent coinsurance for cataract surgery, meaning you pay only your Part B deductible. Check your plan documents or call your insurer to confirm your specific coverage, as it varies by plan type.