Korea SMILE LASIK Pain Management: How Long It Hurts

Worried that a short trip to Seoul for SMILE will mean hours of pain in a hotel room, with no idea what to do once the numbing wears off? Korea SMILE LASIK pain management mostly comes down to one evening.

Hello, I'm Dr. Kim Sun-young, Medical Director at Healing Eye Clinic in Gangnam. My specialty is the cornea, the tissue that Clear SMILE LASIK works inside.

Three things here matter most if pain is your worry. One dedicated surgeon follows you from the exam through surgery to aftercare, so the doctor who checks your eyes the next morning is the one who operated. A medical interpreter is provided at no extra charge, so the drop schedule is explained in words you can follow. And you leave Korea with enough post-op medication to take home, with the ingredients explained.

If you're trying to fit this into a long weekend, send a photo of your current glasses or contact lens prescription and the dates you could come on WhatsApp, along with the one question on your mind, for example whether a Friday surgery with a Saturday check-up could work for your eyes.

Does SMILE hurt during the surgery itself?

For most people, very little. Numbing drops go in before anything starts, and both eyes together usually take about ten minutes. What people notice is pressure: the eye is held still by gentle suction, and for a short stretch your vision dims or goes grey while the laser works. Knowing that in advance takes much of the fear out of it.

Inside the cornea, the laser shapes a thin, lens-shaped piece of tissue called a lenticule, which is removed through one small opening at the edge.

If the clinic names confuse you, I've written separately about what Clear SMILE and SMILE each mean.

Why does the first evening feel the worst?

The numbing drops wear off not long after you leave the clinic. That's when most people feel it: a gritty, eyelash-in-the-eye sensation, tears running, and squinting at lamps and phone screens. On surgery day this is expected, and it's the main thing you're managing.

What helps is mostly rest. Go straight back to your room after surgery, close your eyes, and sleep if you can. Use the prescribed drops exactly on the schedule you're given, and set phone alarms, because it's easy to lose track with your eyes shut. Keep preservative-free artificial tears for the gaps between doses, wear sunglasses in the taxi, and don't rub, however much your eyes itch.

Used repeatedly, they slow the healing of the eye's surface, so they stay in the operating room. Relief on the first night comes from sleep, the prescribed drops and time. If you tend to sleep face-down or rub your eyes half-asleep, ask on surgery day whether to wear an eye shield at night; it's a common precaution after corneal surgery.

If your exam points you toward LASEK instead, plan the trip differently. The surface layer has to regrow, and the discomfort usually lasts several days, as the AAO's EyeWiki entry on LASEK describes. That changes your schedule far more than the surgery itself does.

What does Korea SMILE LASIK pain management look like, day by day?

Here is how recovery usually runs, with what each stage means for someone who has to get home.

Read down the right-hand column and the trip length falls out of it. The shortest plan is one night and two days, if your exam results allow it: exam and surgery on day one, the check-up on day two. For a less rushed trip I suggest two to three days, and the exact schedule is fitted to your flights in the consultation.

Which day of the week should you book?

The clinic's hours shape the plan more than people expect. We're open Monday to Thursday from 10:00 to 18:30, Friday until 21:00 and Saturday from 10:00 to 14:00, with lunch from 13:00 to 14:00, and we're closed on Sundays and public holidays. The usual pattern is the exam in the morning and surgery in the afternoon, with the check-up the next day.

Say you teach English in Osaka and have a Friday off plus the weekend. A Friday plan would look like this: exam in the morning, surgery in the afternoon, the check-up on Saturday morning, and a flight home Saturday afternoon or Sunday. It can fit, and it's worth asking about. The catch is Sunday. The clinic is closed, so if you'd like a second look before the airport, there isn't one that day.

If your dates are flexible, a Tuesday or Wednesday surgery leaves open clinic days on both sides, which gives the same trip more margin. Either way, we're one minute's walk from Sinnonhyeon Station and about 70 minutes from Incheon Airport, and our partner hotel is the O'Cloud Hotel in Seocho-gu. Pick a room close enough that the first evening is a short taxi ride with your eyes closed.

If you wear contact lenses, you'll need to stop them for a while before the exam, and the number of days is confirmed in the consultation; check that before you buy tickets. The hours, address and contact options are on Healing Eye Clinic's English site, and if you're still lining clinics up side by side, my notes on how to compare SMILE LASIK quotes in Korea may help.

What if your eyes feel dry and scratchy on the flight home?

Flying is allowed from the day after surgery, once the next-day check-up confirms things look as expected. Cabin air is dry, and dry eyes feel scratchier, so use artificial tears often during the flight. Single-use vials fit easily in a carry-on liquids bag; keep your prescribed drops there too, never in checked luggage.

Before you leave, I prescribe enough post-op medication to take home and explain the ingredients, so you can find an equivalent locally if you run short. After that, you can check in with us by email or video call, and if you need to be seen at home, we provide a referral letter for your local eye doctor.

Healing Eye Clinic is registered with Korea's Ministry of Health and Welfare to treat international patients, and we run a lifetime surgical responsibility system; ask what it covers for your case when you consult. If someone helping you plan prefers Korean, the same procedure is described on our Korean-language Clear SMILE page.

What if pain gets worse instead of better?

Normal discomfort after SMILE moves in one direction: it's strongest on the first evening and eases from there. Grittiness, tearing and light sensitivity on day one are expected. Dryness that comes and goes, and vision that fluctuates a little, can last a few weeks while the cornea settles. Some people feel almost nothing after the first nap; others are uncomfortable until the next morning.

Risks and side effects to know

Pain that builds after the first night is not normal. Neither is vision that gets worse instead of better, discharge, or redness that spreads. Infection and inflammation after corneal surgery are uncommon, but they're the reason not to wait. The FDA's patient guidance on laser eye surgery says to contact your eye doctor right away, without waiting for a scheduled visit, if you have severe pain or your vision or other symptoms get worse.

If that happens after you're home, email or video-call us and see a local ophthalmologist the same day with your referral letter.

Who should wait or choose another method

SMILE isn't the right first choice for every eye. A thin cornea, or topography that shows irregularity or signs of keratoconus, can make LASEK or an implantable lens (ICL) the safer path. Very high myopia often suits ICL better. If you're pregnant or breastfeeding, or your prescription is still changing, it's better to wait. Severe dry eye is usually treated first, because a dry surface turns ordinary post-op grittiness into a long night. The FDA's page on when laser surgery isn't advisable lists similar reasons.

For more of the background I give people before they commit, see what I tell international patients first about LASIK in Korea, and for the questions travelers raise online, SMILE LASIK Korea questions from Reddit, answered.

SMILE Eye Surgery in Korea: What Happens, Step by Step go further into what usually comes next.

What should you check before you book flights?

In the exam room, the numbers I look at first for your first evening are corneal thickness and the tear film, since a dry surface is what makes the night after surgery harder. Your prescription history tells me whether it has been stable for about a year.

The consultation on WhatsApp is free, and questions about prices, the interpreter and your schedule all belong there. Send a photo of your prescription with the days you could fly in and out, and ask whether those dates leave room for a quiet first evening and the check-up before your flight.