Korea SMILE LASIK Pain Relief: What Helps and When to Fly

Usually one evening. My field is the cornea, and my credentials include Clinical Professor (Cornea & Cataract), Uijeongbu St. Mary's Hospital.

Hello, I'm Dr. Kim Sun-young, Medical Director at Healing Eye Clinic in Gangnam.

With Clear SMILE LASIK here, one surgeon handles your exam, your surgery and your check-ups, so the doctor you tell “it still stings” the next morning is the one who operated. An English medical interpreter joins you at no extra charge.

For the week you've blocked out, the answer is shorter. The quickest plan we list for Clear SMILE is one night and two days if your exam allows it: exam in the morning, surgery in the afternoon, check-up the next day. For a more relaxed trip, plan 2–3 days. A full week is closer to what surface treatment asks of you, and whether your corneas suit SMILE at all is the first thing your exam settles.

If you still have the printout from the surgeon who suggested PRK, send a photo of it on WhatsApp with the dates you have off, and ask how many of those days you'd actually need. The consultation on WhatsApp is free, and with existing records or photos we can give a first opinion on suitability by video or online consultation.

Why would SMILE hurt less than the PRK you were quoted?

Because the sore part of an eye after laser correction is mostly its surface. The epithelium, the thin outer layer of the cornea, is dense with nerve endings, and in PRK or LASEK it is removed or moved aside over the treated zone.

That layer then has to grow back across the treated area, which usually takes several days. Until it closes, the eye feels raw, waters and dislikes light, and that's the stretch your friend remembers. A bandage contact lens helps, but the nerve endings underneath are still exposed.

SMILE works inside the cornea instead. The laser shapes a thin, lens-shaped piece of tissue, the lenticule, within the stroma, and it comes out through one small opening at the edge. The surface over the treated zone stays where it was. What you feel afterward is the small incision and the eye reacting to the procedure: grit, tears, light sensitivity. Our recovery notes list exactly that as normal on surgery day, with vision starting to recover right away.

If the procedure names have you confused, I've explained what Clear SMILE and the other SMILE names mean, and separately how SMILE and LASIK compare when you're flying in. Our Korean main site also has its own Clear SMILE LASIK page, if you'd like the same description in Korean.

Korea SMILE LASIK pain relief: what helps on the first evening

During the operation, numbing drops are used, so there is little to no pain while the laser works. You'll notice pressure and a light to look at, and both eyes together take about ten minutes.

The grit and watering arrive once the numbing wears off, often on the way back to your room or soon after. What helps, roughly in order of how much it matters:

• Sleep. Go straight to your room and keep your eyes closed for the first few hours. With surgery in the afternoon, that sore window lands in the evening, so a hotel close by matters more than a view. Our partner hotel is O'Cloud Hotel in Seocho-gu.
• The drops you're given, on schedule. Before you leave, we prescribe enough post-op medication to take home and explain the ingredients so you can find alternatives locally if needed.
• Sunglasses for the taxi and the hotel lobby. Light sensitivity is part of day one.
• Hands off. The FDA's patient guidance on laser vision correction warns against rubbing the eye, and notes your doctor may suggest a mild pain reliever and a shield to protect the eye.

A tip most people learn the hard way: before you fly, photograph the label and ingredient list on every bottle you take home. If one runs out or leaks in the cabin, a pharmacist at home can match the active ingredient from that photo far faster than from a Korean product name.

Your days in Seoul, from exam morning to the flight home

Our hours shape the plan more than most people expect: Monday to Thursday 10:00–18:30, Friday until 21:00, Saturday 10:00–14:00, lunch 13:00–14:00, and closed on Sundays and public holidays.

Say you land on Thursday night. If your exam allows same-day surgery, Friday works well: the sore evening is spent in the hotel, your next-day check-up falls on Saturday morning inside the 10:00–14:00 hours, and Saturday evening or Sunday is open for the flight. The day to avoid for surgery is Saturday, because the check-up would land on a Sunday, when we're closed. On the plane, cabin air is dry, so use artificial tears often.

Once you have rough flight times, send them on WhatsApp with the date you last wore contact lenses, and ask how long you need to stay out of them before the exam. That answer often decides which day your trip can start.

What if it still hurts after you fly home?

Some grit or dryness can come and go for a few weeks, often on planes or after long screen sessions, and artificial tears are usually enough for it. Pain that is getting worse instead of better is a different matter, and so is vision that is dropping. The FDA tells patients to contact their doctor immediately if pain is severe or if vision or other symptoms worsen instead of improving.

Once you're home, you can check in with us by email or video call, and if you need to be seen locally, we provide a referral letter for your eye doctor at home. We're also registered with Korea's Ministry of Health and Welfare as a medical institution for international patients. Our address, hours and messenger buttons are on Healing Eye Clinic's English homepage.

Who shouldn't plan around a SMILE-length recovery?

SMILE suits myopia or myopic astigmatism with a prescription that has been stable for about a year. A few findings change the plan, and with it the pain picture:

Risks and side effects to know

• A thin cornea, or topography showing irregularity or signs of keratoconus. LASEK or ICL may be safer, and LASEK brings back the several days of surface healing you were hoping to skip.
• Very high myopia, where an implantable lens (ICL) may suit you better. ICL leaves the shape of the cornea alone and places a lens inside the eye; the FDA lists raised eye pressure and cataract among the risks of these lenses, so it needs its own screening.
• Pregnancy or breastfeeding, or a prescription that is still changing. Waiting is the better call.
• Severe dry eye, which we may treat first.

How much any one person feels after surgery varies, and eyes that are already dry beforehand tend to notice dryness more afterward. The FDA's page on when LASIK is not for you is a useful checklist of other reasons to wait, from unstable vision to conditions that affect healing. I've also written about what I check first before saying yes to SMILE.

What should you send before booking the flight?

If they point to SMILE, the days above are your plan. If they point elsewhere, you'll hear why, and what the other route asks of your calendar.

So send a photo of your current glasses or contact lens prescription on WhatsApp, along with any corneal thickness or topography printout behind the PRK suggestion, and ask one thing: is SMILE realistic for my cornea, or should I plan my leave around surface treatment? The consultation on WhatsApp is free, and one clear photo is enough to start.