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April 01, 2026
If you’re considering LASIK but have cataracts—or are concerned about developing them—you may be wondering what your eye surgeon will evaluate before recommending a procedure. Understanding the key factors your OOMC surgeon examines can help you make an informed decision and achieve the best possible vision. Let’s go over some of those here.
Cataracts occur when the natural lens inside the eye becomes cloudy, preventing light from focusing clearly on the retina. This leads to blurred or hazy vision and is most common in older adults, though trauma, medications, or medical conditions can also contribute.
Common symptoms include:
Over time, cataracts gradually worsen, which can interfere with everyday activities like reading, driving, or using digital devices. According to the National Eye Institute at the National Institutes of Health, more than half of all Americans age 80 or older either have cataracts or have had surgery to get rid of cataracts.*
LASIK (Laser-Assisted In Situ Keratomileusis) is designed to correct refractive errors such as nearsightedness, farsightedness, and astigmatism. The procedure reshapes the cornea—the clear front surface of the eye—allowing light to focus correctly on the retina.
While LASIK is highly effective for corneal refractive errors, it does not address cataracts, which occur in the lens behind the cornea. This distinction is a primary consideration for your eye surgeon.
When evaluating a patient with cataracts who is interested in LASIK, your surgeon will examine several key factors:
Surgeons assess whether the cataract is mild, moderate, or advanced. Mild cataracts may not immediately interfere with LASIK, but moderate to severe cataracts usually need to be removed first through cataract surgery.
Your eye surgeon will check for additional conditions such as glaucoma, retinal problems, or corneal irregularities. These factors can impact both LASIK and cataract surgery outcomes.
Surgeons consider your desired visual outcome. If your main goal is reducing dependence on glasses, they will determine whether LASIK alone, cataract surgery with an intraocular lens (IOL), or a combination is most appropriate.
Accurate measurements of the cornea and lens are critical. LASIK requires a cornea thick enough to create a flap, while cataract surgery relies on precise lens calculations to select the correct IOL for optimal vision correction.
Your surgeon will review your vision history to ensure your prescription is stable. Sudden changes in vision may indicate that cataracts are progressing and that LASIK may not provide lasting results.
Cataract surgery removes the cloudy natural lens and replaces it with a prosthetic IOL. Modern IOLs can correct refractive errors, including nearsightedness, farsightedness, and astigmatism. Many patients find that the IOL provides similar benefits to LASIK, sometimes eliminating the need for additional refractive surgery.
If a small refractive error remains after cataract surgery, your eye surgeon may recommend LASIK to fine-tune your vision once the eye has fully healed.
LASIK and cataract surgery are never performed simultaneously. Typically, cataract surgery is completed first, followed by a recovery period before LASIK, if needed. Your surgeon will evaluate healing, corneal thickness, and residual refractive error before proceeding with any additional procedure.
Can LASIK prevent cataracts from forming?
No. LASIK reshapes the cornea and does not affect the natural lens, so cataracts can still develop after LASIK.
Can cataract surgery correct vision issues like astigmatism?
Yes. Modern IOLs can correct refractive errors, often reducing or eliminating the need for glasses or contact lenses after surgery.
What happens if I have LASIK and then develop cataracts later?
LASIK does not prevent cataracts. If cataracts develop, your eye surgeon may recommend cataract surgery with a lens implant. Post-surgery, LASIK or another procedure may be used to fine-tune vision if needed.
Understanding what your eye surgeon will look for is essential when considering LASIK with cataracts. By carefully evaluating cataract severity, overall eye health, corneal and lens measurements, and visual goals, your surgeon can recommend the safest and most effective approach for clear vision.
Schedule a consultation at OOMC to have your eyes thoroughly evaluated. Our team will guide you through your options and create a personalized plan to help you see your world more clearly.
*Source: National Institutes of Health
