Korean Vision Correction Surgery: Every Option in One Table

I'm Dr. Kim Sun-young, medical director of Healing Eye Clinic in Sinnonhyeon, Gangnam, Seoul. I was a clinical professor of cornea and cataract surgery at a university hospital, and I now examine international patients every week, with an interpreter in the room from the first measurement to the consent form.

The question I hear most from abroad: "Dr. Kim, there are so many names — LASIK, LASEK, SMILE, ICL. Which one do Korean surgeons actually recommend?"

If you searched korean vision correction surgery, you've probably met the same alphabet soup. It's genuinely confusing, and every clinic seems to have its own brand name for each one.

So let me be honest: there is no single "Korean" procedure that's better than the rest — there are five routes, and your cornea closes some of them before you ever choose. Here they are, in the order I explain them at the exam.

What kinds of Korean vision correction surgery are there?

Every option works in one of two ways: reshape the cornea with a laser, or add a lens inside the eye. Within those, there are five routes.

1. LASIK — fast recovery, flap-based

A thin corneal flap is lifted, the tissue underneath is reshaped, and the flap is laid back. We offer Clear LASIK and a custom LASIK designed around higher-order aberrations.

Most people see well enough for daily life the next day. It needs enough corneal thickness.

2. LASEK — no flap, slower first week

The surface layer is moved aside and the laser works directly on the cornea. It suits thinner corneas and contact sports.

The first three to five days are the least comfortable, and vision sharpens over one to four weeks. You can't fly home until the protective lens comes out.

3. SMILE — no flap, small opening

A laser shapes a thin lens of tissue inside the cornea, which I remove through a 2–4mm opening. There's no flap, and more corneal nerves stay intact.

It suits moderate myopia with or without astigmatism. It doesn't treat farsightedness.

4. ICL — a lens instead of a laser

A thin lens is placed behind the iris, in front of your natural lens. Nothing is removed from the cornea, and the lens can be taken out if ever needed.

It's usually the answer for very high myopia or a cornea too thin for laser.

5. Options after the mid-forties

Reading vision changes everything. Presbyopic LASIK or LASEK, or replacing the natural lens, may make more sense than standard laser at this age.

Why one doctor should make the whole decision

Choosing between five routes is a medical judgement, not a menu choice. At our clinic, the doctor who reads your corneal maps is the doctor who operates and the doctor who checks you the next day.

Things you can verify: international patients pay the same price as Korean patients, we hold 4.8 stars from 154 Google reviews, and I'm a full member of ESCRS. The Korean head office explains its flagship laser on the Clear LASIK page.

I'm not listing these to persuade you. They're there so you can check us.

So which one would suit me?

This is the decision table I sketch on paper for patients. The exam gives the real answer.

How the two laser families compare in depth is in laser eye surgery in Korea, and the lens route is in ICL surgery in Korea.

Side effects, and who I turn away

Every route has trade-offs, and you should hear them before you book.

• Dryness is common after laser for weeks to months; usually milder after SMILE.
• Night glare and halos can appear, particularly with large pupils.
• Regression of part of the prescription is possible.
• ICL needs regular checks of eye pressure and the inner corneal cells.

I don't operate on early keratoconus, a prescription that's still changing, or untreated dry eye. Results and recovery vary from person to person.

Planning the trip

• LASIK or SMILE: at least three nights, ideally four.
• LASEK: about a week.
• ICL: one or two extra days if the lens must be ordered.
• Contacts: stop soft lenses at least a week before the exam, rigid ones longer.

When to book and what to bring is in vision correction surgery Korea: planning the trip.

Don't choose the name — choose the exam

Five procedures, one cornea. Let the cornea vote first.

It doesn't have to be our clinic. But choose one that will show you why a route is closed, not just sell you the one that's open.

Send us your prescription, age and travel window on WhatsApp. If none of these routes suits your eyes, I'll tell you plainly.

I hope to see you in Seoul.

— Dr. Kim Sun-young, Medical Director, Healing Eye Clinic (Sinnonhyeon, Gangnam, Seoul)