The best age to get LASIK is between 25 and 40. This range balances two key factors: your prescription has had time to stabilize, and you still have years of clear distance vision ahead before age-related reading vision loss kicks in. The FDA approves LASIK only for people 18 and older, but most surgeons prefer to wait until at least the mid-20s for the most reliable, long-lasting results.
Why Your Prescription Needs to Be Stable First
LASIK permanently reshapes your cornea to match your current prescription. If that prescription is still shifting, the correction won’t hold. This is the single biggest reason younger patients get told to wait. Eyes continue developing through the late teens and into the early 20s, and nearsightedness in particular can keep progressing during that time. The FDA specifically flags patients in their early 20s or younger as more likely to have unstable vision.
The standard threshold most surgeons use: your prescription should not have changed by more than 0.50 diopters (roughly one “click” on the eye chart) over at least one to two years of annual eye exams. If you’ve been wearing the same glasses or contacts without needing an update for a couple of years, that’s a strong sign you’re ready. If your eye doctor keeps adjusting your prescription at every visit, your eyes are still settling.
The Sweet Spot: Mid-20s to Late 30s
Patients between roughly 25 and 40 tend to get the most consistent, longest-lasting results. By the mid-20s, most people’s prescriptions have stabilized. The cornea is healthy, tear production is strong, and there’s typically no sign yet of cataracts or other age-related eye changes that could complicate the procedure.
Timing also matters for how many glasses-free years you get. Most patients maintain their corrected distance vision for 10 to 20 years after LASIK. If you have the procedure at 28, you could easily get a full decade or more of sharp vision before presbyopia (the gradual loss of close-up focus that hits around 40) sends you reaching for reading glasses. That’s a meaningful return on a one-time procedure.
LASIK in Your Early 20s
Getting LASIK at 20 or 21 isn’t off the table, but it comes with a higher risk of regression, meaning your vision gradually drifts back toward where it started. The younger you are, the more likely your eyes haven’t fully finished changing. Some people’s nearsightedness stabilizes by 18, but others continue shifting into their mid-20s. There’s no reliable way to predict which group you fall into other than tracking your prescription over time.
If you’re in your early 20s and eager to ditch glasses, the best move is to start getting annual eye exams now and document your prescription history. Two consecutive years with less than a 0.50 diopter change gives your surgeon confidence that the correction will stick.
LASIK After 40: Presbyopia Changes the Equation
Around age 40, the lens inside your eye gradually loses flexibility. This is presbyopia, and it happens to virtually everyone regardless of whether they’ve had LASIK. You’ll notice it when restaurant menus and phone screens start looking blurry up close. LASIK corrects the shape of your cornea for distance vision, but it can’t prevent the lens from stiffening with age.
This doesn’t mean LASIK is pointless after 40. It can still eliminate your need for distance glasses or contacts. But you should expect to need reading glasses within a few years, even if your distance vision is perfect post-surgery.
One workaround is monovision LASIK, where the surgeon intentionally corrects one eye for distance and the other for near vision. Your brain learns to rely on whichever eye has the sharper image for the task at hand. In a large study of patients averaging 52 years old, this approach worked well for people who tolerated it during a pre-surgery trial with contact lenses or trial frames. Interestingly, nearly half the patients in that study skipped the contact lens trial entirely and went straight to surgery with no difference in satisfaction. If you’re over 40 and considering LASIK, ask about a monovision demonstration to see whether your brain adapts comfortably.
LASIK After 60: Eye Health Matters More Than Age
Age alone doesn’t disqualify you from LASIK, but the odds of having a condition that does disqualify you go up significantly after 60. Cataracts are the biggest concern. If your natural lens is clouding over, LASIK won’t help because the problem isn’t your cornea’s shape. Cataract surgery, which replaces the clouded lens with an artificial one, can often correct your vision at the same time, making LASIK unnecessary.
Dry eyes, reduced tear production, and conditions like glaucoma also become more common with age. A surgeon evaluating an older patient will pay close attention to corneal thickness, tear quality, and the overall health of the eye before clearing someone for the procedure. The evaluation is more involved, but plenty of people in their 60s are still good candidates if their eyes are healthy.
Pregnancy and Breastfeeding: A Temporary Pause
Hormonal shifts during pregnancy and breastfeeding can temporarily change your cornea’s shape and your prescription. This is why surgeons recommend waiting until after you’ve stopped breastfeeding, your menstrual cycle has returned to normal, and your eye doctor has confirmed your prescription is back to its pre-pregnancy baseline. Simply getting your period back isn’t enough on its own, since hormonal effects on the cornea can linger while you’re still nursing.
If you’re planning to have children in the near future, it’s worth factoring this into your timing. Getting LASIK before pregnancy is fine, and the procedure won’t be undone by hormonal changes. But if you’re currently pregnant or nursing, you’ll need to wait.
When LASIK Isn’t the Right Fit
Some people fall in the right age range but aren’t good candidates for other reasons. Very strong prescriptions or thin corneas can make LASIK risky because there isn’t enough tissue to safely reshape. In those cases, implantable lenses (ICLs) are an alternative. ICL candidates are typically between 21 and 60, need a stable prescription for at least a year, and must have otherwise healthy eyes. The lens is placed inside the eye rather than reshaping the surface, so corneal thickness isn’t a limiting factor.
PRK, a surface-based laser procedure, is another option for people whose corneas are too thin for LASIK but whose prescriptions fall within treatable range. Recovery takes longer than LASIK (days to weeks rather than hours), but the visual outcomes are comparable for most prescriptions.