No single procedure suits everyone. Here's a clear, honest comparison of every EYEONCE vision solution — how each works, the equipment behind it, recovery, suitability and the right age for each. Your precision exam confirms the final choice.
The essentials at a glance. Your precision exam always confirms the safest, best-fit option for your eyes.
| Procedure | How it works | Corneal flap | Best for | Recovery | Reversible |
|---|---|---|---|---|---|
| SMILE PRO | Flapless, bladeless keyhole laser (femtosecond) — our most advanced generation | None · 2–4 mm keyhole | Myopia & astigmatism; active lifestyles; dry-eye concern | Next-day functional vision | No (tissue reshaped) |
| SMILE LASIK | Flapless keyhole laser — the proven SMILE technique | None · 2–4 mm keyhole | Myopia & astigmatism; sport & travel; lower dry-eye risk | Next-day functional vision | No (tissue reshaped) |
| LASIK | All-laser flap created, then cornea reshaped | Flap (all-laser) | Suitable corneas wanting fastest recovery | 1–2 days | No (tissue reshaped) |
| LASEK | Surface treatment — epithelium preserved, no flap | None · surface | Thinner corneas; high-impact / contact sports | Gradual, over 1–few weeks | No (tissue reshaped) |
| ICL | A soft biocompatible lens implanted inside the eye — no cornea removed | None (no cornea removed) | High myopia; thin corneas; dry eyes | Clearer within a day; settles over 1–2 weeks | Yes — removable |
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The right result depends on matching the right technology to your eyes. Each step below uses a different named piece of equipment.
Photographed at EYEONCE Eye Clinic Gangnam.
The femtosecond laser behind our flagship CLEAR SMILE (SMILE PRO / SMILE LASIK) — flapless, keyhole precision through a 2–4 mm incision.
A high-speed excimer laser used for all-laser LASIK & LASEK, reshaping the cornea with 500 Hz excimer ablation.
Advanced phaco technology for cataract & presbyopia, paired with premium multifocal and monofocal intraocular lenses.
Detailed anterior-segment measurement for correctly-sized, reversible implantable collamer lenses — ideal when laser isn't the safest route.
Corneal mapping and imaging results are what your surgical plan is built on.
Technology assists — but your operating surgeon makes every clinical decision, from evaluation through recovery.
Your eyes change over time — and the best solution changes with them. A general guide (your exam confirms the details):
SMILE PRO, SMILE LASIK, LASIK/LASEK and ICL suit adults 18+ with a stable prescription for at least a year. Ideal through the 20s, 30s and early 40s — before presbyopia sets in.
Age-related loss of near focus typically begins around 40–45. Premium full-range and multifocal lenses restore near, intermediate and far vision.
Cataracts usually develop from the 50s–60s onward. We recommend a cataract screening from your 50s — earlier if you notice glare, halos or clouding. A premium IOL can correct cataract and presbyopia together.
Between 45 and 55, several options may apply — message us and we'll look at your exam results together and decide.
International patients share what actually happened — from their first fears to waking up the next morning without glasses.
Our patients share their stories on Google — verified, public and unfiltered. Open the map to read every review straight from the source.
Tell us your prescription and travel dates. Our English-speaking team will design your personalized plan — free of charge, no pressure.
An English-speaking eye clinic in the heart of Gangnam, Seoul — moments from Sinnonhyeon Station and easily reached from Incheon International Airport.
5–6F, Duo Sinnonhyeon, 368 Sapyeong-daero, Seocho-gu, Seoul, South Korea
+82-10-6308-0984 — English, Chinese, Mongolian & Thai
Mon, Tue, Thu, Fri 09:00–18:00 · Sat 09:00–16:00 · Lunch break 13:00–14:00 · Closed Wed & Sun
By appointment only · Registration may close early depending on the day’s schedule.
Sinnonhyeon Station (Line 9 / Sinbundang Line) — 3 min walk. Gangnam Station (Line 2) nearby.