LASIK Risks and Side Effects: The complete picture
LASIK has an excellent safety record, but excellent is not the same as zero risk. This page covers everything you would want to know before deciding, including the things that rarely make it into the brochure.
Part of the EyeSight Hawaii LASIK guide. For a full overview of the procedure, candidacy, cost, and recovery, see the LASIK Hawaii pillar page.
What most patients experience
Common side effects, and how long they last
These are normal parts of healing. Most resolve within weeks to months. For the full recovery timeline, see the LASIK recovery guide.
Dry eye symptoms
The most frequently reported side effect. LASIK temporarily reduces corneal nerve sensitivity, affecting tear film regulation. Managed with prescribed lubricating drops.
Night glare and halos
Rings of light around headlights and screens, most noticeable in the first months. Modern wavefront-guided LASIK has significantly reduced this versus older techniques.
Fluctuating vision
Vision may vary throughout the day in the first weeks: sharper in the morning, slightly blurry by evening as eyes dry out. Normal corneal adaptation, not a sign the procedure did not work.
Light sensitivity
Eyes become temporarily more sensitive to bright light. Hawaii UV index makes UV-protective sunglasses the main management tool post-op.
Ghosting and double vision
A slight shadow or ghost image alongside the main image, particularly at night. Usually a result of corneal swelling during the healing phase.
Day-1 discomfort
A gritty, scratchy sensation for several hours after the procedure as numbing drops wear off. Most patients sleep through the worst of it.
Frequency breakdown
How common is each side effect?
Incidence figures drawn from FDA data and peer-reviewed LASIK outcome studies. Most patients who experience these effects report them as mild.
Rare but real
Rare complications: what you should know
Serious complications are uncommon but they exist. Dr. Olkowski and Dr. Hirabayashi will discuss these before your procedure. If thin corneas or other factors put you at higher risk, PRK or EVO ICL may be a safer alternative.
| Complication | Rate | Treatable? | Notes |
|---|---|---|---|
| Flap complications | <0.5% | Usually correctable | Extremely rare with modern bladeless techniques. Typically repositionable if it occurs. |
| Infection (keratitis) | 0.02 to 0.1% | Yes, antibiotics | Rare and typically responds well to prompt antibiotic treatment. |
| Corneal ectasia | <0.1% | Partially manageable | Progressive corneal thinning. Most common in borderline candidates. Prevented by rigorous screening. |
| Significant vision loss | <0.1% | Varies | Worse vision than glasses could achieve pre-op. Extremely rare with experienced, board-certified surgeons. |
| Persistent severe dry eye | ~1 to 3% | Manageable | Symptoms lasting beyond 12 months. Higher risk in patients with pre-existing dry eye, hence mandatory screening. |
| Regression and drift | 1 to 3% | Yes, touch-up | Minor prescription change over time. Enhancement procedures are routine and effective. |
Risk reduction
How a good surgeon minimises your risk
Most LASIK complications are preventable through rigorous screening, modern equipment, and a surgeon who knows when to say no.
Rigorous candidacy screening
Corneal mapping, thickness measurement, topography, pupil size, prescription stability, and dry eye assessment. All before any recommendation is made.
Wavefront-guided technology
Modern wavefront-guided LASIK maps the unique optical fingerprint of your eye to 0.25-micron precision, significantly reducing aberrations such as glare, halos, and ghosting.
Bladeless flap creation
Femtosecond lasers create flaps with far greater consistency than older mechanical microkeratomes. Flap complications, already rare, become rarer still.
Surgeon experience
Complication rates correlate strongly with surgeon volume and experience. Dr. Olkowski and Dr. Hirabayashi have each performed thousands of procedures.
Clear go and no-go criteria
Hard limits for corneal thickness, prescription ranges, and topography patterns. We stick to them. Borderline candidates are offered PRK or EVO ICL as alternatives.
Thorough post-op protocol
The right drops, prompt follow-up, and early detection of inflammation or regression are as important as the surgery itself. All post-op visits are included in the procedure cost.
The long view
What to expect long-term
LASIK is a permanent procedure. The corneal reshaping does not reverse. Here is what that means over the next 10, 20, and 30 years.
What stays the same
The correction holds. The vast majority of patients maintain their results indefinitely. The reshaped cornea does not revert.
Dry eye improves. For most patients, symptoms peak around 3 months and resolve substantially within 6 to 12 months.
Night vision stabilises. Halos and glare are most pronounced in the first 3 to 6 months. Most patients report no significant night-vision issues after one year.
Enhancement rates are low. Around 1 to 3% of patients need a retreatment years later due to minor prescription drift. This is routine and typically straightforward.
Vision stability: patients maintaining result
What will still change (with or without LASIK)
Presbyopia arrives in your mid-40s. Age-related reading difficulty caused by the natural lens stiffening. Completely unrelated to LASIK. It happens to everyone.
Cataracts can still develop. LASIK does not affect cataract risk. If cataracts develop later, surgery can be performed safely on post-LASIK eyes.
Small prescription shifts are possible. A minority see minor changes over time, especially with higher pre-LASIK prescriptions. A retreatment can address this.
Annual eye exams remain important. LASIK treats refractive error, not eye health broadly. Glaucoma screening and retinal checks still matter.
For a full breakdown of the recovery and healing timeline, see the LASIK recovery guide including what is normal and what to watch for.
The patients who are happiest with their LASIK results are the ones who went into it with realistic expectations, not because we scared them off, but because they understood exactly what the procedure does, what it does not do, and what the first few months of recovery actually feel like. Transparency is not a risk to conversion. It is the foundation of it.
Drs. Olkowski, Hirabayashi & Malecha, board-certified ophthalmologists, EyeSight Hawaii Honolulu and Maui
Ready to find out if LASIK is right for you specifically?
A free consultation at EyeSight Hawaii will assess your individual risk profile: corneal mapping, dry eye screening, prescription stability. You will know exactly where you stand before making any decision.
Part of the EyeSight Hawaii LASIK guide · LASIK cost Hawaii · LASIK recovery · LASIK vs EVO ICL vs PRK