Is Laser Eye Surgery Right for You?

Overview

This guide opens a new area of VouchX's content coverage: vision correction. Laser eye surgery — LASIK and its alternatives — is one of the most-performed elective procedures in the world, and it's also one where patient satisfaction is genuinely high when the candidacy criteria are taken seriously. This guide covers the real eligibility requirements, an honest look at what the FDA's own risk data actually shows, how LASIK compares to PRK and SMILE, and what's specifically different about doing this procedure abroad — so you have an informed starting point before your first consultation.

What this guide covers

The real candidacy criteria

• Age, prescription stability, and the diopter ranges that actually qualify
• The eye and health conditions that rule LASIK out

What the risk data actually shows

• Real FDA and NHS figures, not vague reassurance
• The dry eye and night vision numbers most patients aren't told upfront

LASIK vs. PRK vs. SMILE

• What's actually different, and who each one suits better

Cost, and what's different about doing this abroad

The real candidacy criteria

Not everyone who wants laser eye surgery qualifies for it, and the criteria are worth knowing before you invest time in researching clinics or destinations.

Age and prescription stability: LASIK is FDA-approved starting at 18, though many surgeons prefer to wait until 21 for full ocular maturity. Your prescription also needs to have been stable — unchanged — for at least one to two years before surgery, since operating on eyes that are still shifting produces unpredictable long-term results.

Prescription range: Candidates generally need to fall within FDA-approved parameters: up to -12.00 diopters of nearsightedness, up to +6.00 diopters of farsightedness, and up to roughly 6.00 diopters of astigmatism. Outside these ranges, alternative procedures may be a better fit than standard LASIK.

Corneal thickness and shape: Your cornea needs to be thick enough and regularly shaped to safely reshape during surgery. This is measured directly during consultation — it isn't something you can assess yourself — and it's one of the most common reasons an otherwise healthy candidate doesn't qualify for standard LASIK specifically (though PRK or SMILE may still be options; more on that below).

Conditions that typically disqualify candidates: Cataracts, significant glaucoma, corneal scarring, unmanaged dry eye, and active eye infections or injuries. On the systemic side: poorly controlled diabetes, autoimmune conditions like lupus or rheumatoid arthritis, and certain medications (isotretinoin, systemic steroids, immunosuppressants) can also rule out surgery, at least until they're stabilized or discontinued under medical guidance.

Pregnancy and nursing: Hormonal changes during pregnancy and breastfeeding can temporarily affect both your prescription and your eyes' healing response, so most surgeons recommend waiting.

Roughly 15-20% of people who look into LASIK turn out not to be candidates for it — a real number worth knowing going in, though it isn't a dead end. PRK, SMILE, and implantable lenses (ICL) are genuine alternatives for many people LASIK rules out, covered further below.

What the risk data actually shows

This is worth engaging with directly, because a lot of marketing content undersells it. The topline numbers are genuinely good: patient satisfaction surveys consistently land between 92-98%, and a 2008 meta-analysis of over 3,000 peer-reviewed studies found 95.4% patient satisfaction overall. That's a strong track record for an elective procedure.

But the FDA's own data — including its 2014 PROWL studies, run specifically because patient-reported outcomes weren't being fully captured by earlier research — shows a more complicated picture underneath that topline number:

• New visual symptoms: Up to 46% of patients with no visual symptoms before surgery reported at least one (glare, halos, starbursts, double vision) at three months post-op.
• Halos: Up to 40% of previously symptom-free patients developed halos.
• New dry eye: Up to 28% reported new dry eye symptoms at three months.
• Longer-term dry eye: Around 17% of patients may still need daily eye drops for dry eye five years after surgery.
• Night vision: By five years, fewer than 2% of patients report significant visual disturbances, but around 8% report moderate-to-significant difficulty driving at night.
• Serious complications are genuinely rare: the UK's NHS reports complications in under 5% of cases overall, with flap-related complications around 0.244% and infection around 0.04%.

The honest read: most of these symptoms are mild and improve substantially over the following months, which is consistent with the high long-term satisfaction numbers — but a meaningful share of patients experience something in the first few months that isn't captured by a simple satisfaction percentage. If night driving, dry eye, or visual clarity in low light matters a lot for your work or lifestyle, it's worth raising directly and specifically in your consultation, not assuming it won't apply to you.

LASIK vs. PRK vs. SMILE

These three procedures solve the same basic problem — reshaping the cornea to correct vision — through meaningfully different techniques, which is why "which one is right for me" is a real question and not just a brand preference.

The flap is the key structural difference worth understanding: LASIK's flap heals fast and comfortably, but it's also a permanent structural change that carries a small lifelong risk of flap-related complications (including from significant eye trauma years later). PRK and SMILE avoid that specific tradeoff at the cost of a longer or more involved initial recovery. Which one your surgeon actually recommends should come down to your corneal thickness, prescription, lifestyle, and risk tolerance — not just which is more heavily marketed.

Cost, and what's different about doing this abroad

Typical cost, both eyes:

Turkey's pricing advantage is real — patients typically save roughly 60% compared to US costs — and packages commonly include the preoperative exam, the procedure itself, medication, and airport transfers.

Here's what's genuinely different about laser eye surgery specifically, compared to most other procedures covered on this site: recovery from LASIK is fast enough that many patients feel ready to fly home within a day or two, but your surgeon's actual follow-up schedule doesn't stop there. Standard post-op monitoring typically includes a next-day check, then further visits over the following weeks and months to confirm healing is on track and to catch any complications — like infection or flap issues — early, while they're most treatable. This is general, standard practice in ophthalmology rather than a single specific citation, but it's worth stating clearly: flying home before your surgeon has cleared you for it, or without a concrete plan for who checks your eyes at each of those later milestones, is a real gap worth closing before you book — not an afterthought to sort out once you're home.

What to verify before you book

• Your surgeon's specific qualifications and case volume in the exact procedure (LASIK, PRK, or SMILE) they're recommending for you.
• Which technology and technique they're proposing, and why — not just "laser eye surgery" as a generic category.
• Your personalized candidacy assessment, including a corneal thickness measurement — not a decision made from a phone call or online form alone.
• A specific, confirmed plan for follow-up monitoring, including who checks your eyes after you've flown home, and what happens if a complication shows up after you've left.

How VouchX helps

Getting a real candidacy assessment and a concrete follow-up care plan — not just a price quote — is the difference between a good outcome and a stressful one with this particular procedure. Through VouchX's matching flow, you can bring these exact questions to every clinic you're matched with before you commit.

Get my 3 best matches → — five short questions, about 90 seconds.