Yes, you can develop cataracts after LASIK, but LASIK itself does not cause them

Cataracts form when the lens inside your eye becomes cloudy over time. LASIK reshapes the cornea — the clear front surface of your eye — but does not touch the lens where cataracts develop. If you get cataracts years after LASIK, it is because of the same age-related changes that cause cataracts in people who never had LASIK. The surgery does not speed up or slow down cataract formation.

That said, LASIK can make cataracts harder to detect early. After LASIK, your eye's shape changes, and some of the instruments eye doctors use to screen for cataracts may need adjustment. You will also have a different baseline for what "normal" vision feels like for you, which can make early cataract symptoms — like a gradual dimming or yellowing of your sight — easier to miss or dismiss as part of aging.

Key Takeaways

  • LASIK does not cause cataracts; cataracts develop in the lens inside your eye, which LASIK does not alter.
  • Cataracts after LASIK happen for the same reason they happen in anyone else: aging, UV exposure, or certain medical conditions.
  • After LASIK, routine eye exams become more important because some screening tools need adjustment and early symptoms can be harder to notice.
  • If you develop cataracts after LASIK, cataract surgery is still possible and your eye doctor can account for your LASIK history when planning the procedure.

Why LASIK does not cause cataracts

LASIK uses a laser to reshape the cornea, the transparent dome at the front of your eye. The cornea focuses light onto the retina at the back of your eye. By flattening or steepening the cornea, LASIK corrects nearsightedness, farsightedness, or astigmatism without touching any other part of your eye.

The lens — where cataracts form — sits behind the cornea, deeper inside the eye. LASIK does not reach it, does not change its chemistry, and does not expose it to the laser. The lens can only become cloudy through natural aging, sun damage, injury, or certain diseases like diabetes. LASIK changes none of these risk factors.

What actually causes cataracts after LASIK

If you develop cataracts after LASIK, the cause is the same as it would be for anyone: time. The lens is made of protein and water. Over decades, those proteins clump together and scatter light, creating the cloudiness you see as a cataract. This process usually begins around age 60, though it can start earlier depending on genetics, sun exposure, smoking, or eye injury.

Some people develop cataracts in their 50s; others do not notice them until their 70s or 80s. LASIK does not change your timeline. If you were going to get cataracts at 68, LASIK at 45 will not move that forward or back. The only exception is if LASIK somehow caused an eye injury during surgery — which is extremely rare — but that would be a direct injury to the lens, not a side effect of the procedure itself.

How LASIK can make cataracts harder to spot

After LASIK, your cornea has a different shape than it did before. Some of the instruments eye doctors use to measure the eye and screen for cataracts — like keratometry (measuring corneal curvature) — may give different readings or require the doctor to interpret them differently. This is not a problem if your eye doctor knows you had LASIK, but it is one reason to always mention your surgery history at every eye exam.

You may also notice early cataract symptoms more slowly. Before LASIK, you might have worn glasses or contacts that corrected your vision to 20/20 or better. After LASIK, you have that same sharp vision — until a cataract starts to form. The gradual dimming or yellowing of your sight may feel like normal aging rather than a sign that something has changed. Keeping regular eye exams — at least every one to two years once you reach 60 — helps catch cataracts early, when they are still small.

What happens if you need cataract surgery after LASIK

Cataract surgery is still straightforward after LASIK, but your eye surgeon needs to know about your LASIK history before the procedure. During cataract surgery, the surgeon removes your cloudy lens and replaces it with an artificial lens implant. The power of that implant is calculated based on measurements of your eye.

Because LASIK changed your cornea's shape, standard measurement formulas may not work correctly. Your surgeon will use special calculations that account for your LASIK procedure. If your surgeon does not have records of your original LASIK surgery, they may ask for them or use additional imaging to get accurate measurements. Bring any paperwork from your LASIK surgery to your cataract surgery consultation — the more information your surgeon has, the better the outcome.

Protecting your lens after LASIK

You cannot prevent cataracts entirely, but you can slow their development. Wear sunglasses that block 100 percent of UVA and UVB rays whenever you are outside, even on cloudy days. UV damage is one of the few modifiable risk factors for cataracts, and the protection matters whether you have had LASIK or not.

If you smoke, stopping reduces your cataract risk. If you have diabetes, keeping your blood sugar controlled slows cataract formation. If you take corticosteroid medications long-term, ask your doctor whether the dose is necessary; long-term steroids increase cataract risk. None of these steps will prevent cataracts forever, but they can delay them by years.

When to see an eye doctor after LASIK

After LASIK, you should have a follow-up exam within 24 hours, then again at one week, one month, three months, and six months. After that, return to your regular eye doctor for annual exams if you are under 60, or every one to two years if you are 60 or older. These exams are your best defense against catching cataracts early, when they are still small and may not yet affect your vision.

If you notice any change in your vision between exams — dimming, yellowing, increased glare, or halos around lights — contact your eye doctor. These can be signs of a cataract forming, but they can also signal other problems. Either way, you want to know what is happening in your eye.

Frequently Asked Questions

Does LASIK increase my risk of getting cataracts?

No. LASIK does not change your risk of developing cataracts. Your risk depends on age, genetics, sun exposure, smoking, and medical conditions like diabetes — the same factors that affect anyone. If you were at average risk before LASIK, you are at average risk after.

Can a cataract form on the part of my eye that LASIK treated?

No. LASIK treats the cornea, the clear front surface. Cataracts form in the lens, which is behind the cornea and untouched by LASIK. A cataract cannot develop in the cornea itself.

Will my vision after cataract surgery be as good as it was after LASIK?

It can be, but it depends on the accuracy of the lens implant calculation. Because LASIK changed your cornea's shape, your surgeon needs special formulas to choose the right implant power. If the calculation is accurate, your vision after cataract surgery can be as sharp as it was after LASIK. Discuss your vision goals with your surgeon before the procedure.

Should I wait to have LASIK if I am worried about cataracts later?

Cataracts usually do not appear until age 60 or later, and LASIK does not cause them. If you are a good candidate for LASIK and want the surgery, your future cataract risk is not a reason to delay. If you do develop cataracts decades from now, cataract surgery is a routine, safe procedure that your doctor can adjust for your LASIK history.

What if I had LASIK years ago and now I think I have a cataract?

Schedule an eye exam with your eye doctor and mention both your LASIK surgery and your concerns about your vision. Your doctor can examine your lens, confirm whether a cataract is forming, and discuss next steps. If a cataract is present, your doctor will have your LASIK history on file and can plan accordingly.