Forty million Americans have had LASIK since the FDA approved it in 1999. Waking up and seeing clearly without glasses has become a routine expectation for people who do it. If you’ve been on the fence, this guide covers candidacy, the actual procedure, recovery, risks, and cost, so you can go into any consultation with the right questions.
What LASIK Actually Does
LASIK (Laser-Assisted In Situ Keratomileusis) permanently reshapes the cornea to correct nearsightedness, farsightedness, and astigmatism. The procedure takes about 15 minutes per eye. Most patients see dramatically improved vision within 24 hours.
Modern LASIK uses bladeless, all-laser technology (also called iLASIK or LASIK Z) at most reputable centers. This is the current standard. If a center is still using a blade for flap creation, that’s worth asking about.
Are You a Candidate?
Not everyone qualifies. A thorough pre-operative screening is the most critical part of the entire process. You’re likely a good candidate if:
- You’re 18 or older (ideally 21+, when prescriptions tend to stabilize)
- Your prescription has been stable for at least 1-2 years
- You have adequate corneal thickness
- You have no active eye disease (keratoconus, severe dry eye, glaucoma, cataracts)
- You’re not pregnant or nursing
Conditions That Can Rule You Out
Some conditions make LASIK unsuitable or significantly raise risk:
- Keratoconus: Irregular corneal shape. PRK or cross-linking may be options instead
- Severe dry eye syndrome: LASIK can worsen it
- Very high prescriptions: May not be fully correctable
- Thin corneas: SMILE or PRK may be better
The only way to know for certain is a full LASIK evaluation. Most centers offer this free.
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Before Surgery: The Pre-Op Evaluation
Your pre-operative evaluation is a detailed look at your eye health. Expect:
- Corneal topography: Maps the curvature of your cornea in detail
- Wavefront analysis: Detects subtle optical imperfections unique to your eye
- Pachymetry: Measures corneal thickness
- Pupil dilation: Evaluates the retina and internal structures
Contact lens pause: Stop wearing soft contacts at least 2 weeks before your evaluation. Rigid gas permeable lenses require 3-4 weeks off. Contacts slightly reshape the cornea, and measurements taken while wearing them can be inaccurate enough to affect outcomes.
Tell your surgeon about all medications, especially isotretinoin (Accutane) and corticosteroids, which affect healing.
The Procedure: Step by Step
Here’s what happens on surgery day:
Step 1: Numbing drops. Anesthetic eye drops are applied. No needles. You’ll feel mild pressure during parts of the procedure but no pain.
Step 2: Flap creation. In bladeless LASIK, a femtosecond laser creates a thin flap in the outer cornea with greater precision than older methods. The flap is gently folded back.
Step 3: Laser reshaping. An excimer laser, guided by your wavefront measurements, removes microscopic amounts of corneal tissue in a precise pattern. You’ll look at a blinking light. The actual laser treatment takes 20-60 seconds per eye.
Step 4: Flap repositioned. The flap is laid back into place. It adheres naturally. No stitches. The full procedure per eye takes 10-15 minutes.
Most patients are in and out in under 90 minutes including prep.
Recovery: What to Expect Day by Day
Hours 1-6: Vision is blurry immediately after surgery. Eyes may water and feel gritty. You’ll go home wearing protective shields and rest with eyes closed.
Day 1: Most patients wake up with dramatically improved vision, often 20/20 or better. You’ll have a follow-up appointment to confirm healing.
Days 2-7: Mild light sensitivity and occasional dryness are normal. Use the prescribed drops as directed. Don’t rub your eyes.
Weeks 2-4: Vision continues to sharpen. Most patients return to work within 1-2 days. Swimming and contact sports should wait 2-4 weeks.
3-6 months: Vision stabilizes fully for most patients. Some with higher initial prescriptions experience slight regression over time.
| Activity | When to Resume |
|---|---|
| Driving | 1-2 days (once cleared at follow-up) |
| Screen work | 1-2 days |
| Light exercise | 1 week |
| Swimming / hot tubs | 2-4 weeks |
| Contact sports | 4+ weeks |
| Eye makeup | 1-2 weeks |
Risks and Side Effects
LASIK is one of the safest elective procedures performed. Serious complication rates are under 1%. But real side effects exist and you should know them:
Common (usually temporary):
- Dry eyes, the most common side effect, typically resolves within 3-6 months
- Halos and glare around lights at night, most noticeable in the first few months
- Fluctuating vision as the eye heals
- Light sensitivity that usually resolves within weeks
Less common:
- Undercorrection or overcorrection, may require glasses for certain tasks or an enhancement
- Regression, a gradual return of some prescription over years (more common with high initial Rx)
Rare but serious:
- Infection (very rare; antibiotic drops minimize this)
- Ectasia, progressive corneal thinning (proper screening largely prevents this)
The screening process exists specifically to eliminate patients at elevated risk for serious complications. A qualified surgeon will turn away patients who don’t meet candidacy criteria. That’s a good sign, not a red flag.
LASIK Cost in 2026
Pricing has been relatively stable:
| Type | Average Cost (per eye) |
|---|---|
| Standard LASIK | $1,500-$2,200 |
| Bladeless / All-Laser LASIK | $1,800-$2,500 |
| Custom Wavefront LASIK | $2,000-$3,000 |
| SMILE (newer alternative) | $2,200-$3,200 |
Total for both eyes (all-laser custom): $4,000-$5,500 is the most common range.
Be cautious of “$299 per eye” advertising. These offers almost universally exclude most patients once the full evaluation is done. Ask for an all-inclusive quote upfront.
Most medical insurance doesn’t cover LASIK. But FSA/HSA funds can be used, most centers offer CareCredit or in-house financing, and some vision plans provide a discount (VSP, for example, typically offers $500 off through network providers).
Alternatives If LASIK Isn’t Right for You
- PRK: No flap created. Better for thin corneas. Longer recovery (1-2 weeks) but similar long-term results.
- SMILE: Minimally invasive, no flap, excellent for dry eye patients. Growing in adoption.
- ICL (Implantable Collamer Lens): A lens added inside the eye. Reversible. Excellent for high prescriptions that LASIK can’t fully correct.
Frequently Asked Questions
How long does LASIK last?
For most patients, the results are permanent. The reshaping doesn’t reverse. Natural age-related vision changes (presbyopia after 40) happen regardless of LASIK.
Does LASIK hurt?
The procedure is painless with numbing drops. The hours after surgery, eyes can feel scratchy, like something is in them. This typically passes by the next morning.
What if I move my eye during the laser?
Modern systems track eye movement at 1,000+ times per second. If you move, the laser follows or pauses automatically. There’s also a device that gently holds your eyelid.
What’s the minimum age?
Most surgeons recommend waiting until at least 18-21, when prescriptions have been stable for 1-2 years. No upper age limit for LASIK, though cataracts may be the more appropriate treatment for those over 60 with significant vision changes.
LASIK can genuinely change your daily experience. The best way to find out if you’re a candidate is a free evaluation with a qualified provider.