📲 WhatsApp +82-10-6308-0984 Gangnam · Seoul · Korea
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Gangnam · Seoul · South Korea

Wake up to a life without glasses.

EYEONCE is a Gangnam vision-correction specialist for international patients — from Korea, the US and the Middle East. SMILE PRO, SMILE LASIK, ICL and cataract care — with English-speaking staff and same-day surgery.

10 minTypical surgery time
Next dayBack to daily life
ZiemerFEMTO Z8 platform
Why EYEONCE

A specialist clinic, built for
international patients

We focus on one thing — restoring clear, confident vision — and we handle the exam, surgery and travel logistics in one visit for patients travelling to Seoul.

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Doctor-Led Care

Your consultation, surgery and follow-up are all handled personally by the operating surgeon — never passed off.

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Advanced Diagnostics

Precision pre-op mapping on our Ziemer and diagnostic systems determines the right procedure for your eyes.

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On-Site Interpreters

Interpreters live in-house — English, Chinese, Mongolian and Thai — so there's zero language barrier from your first WhatsApp message to your final check-up.

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Same-Day Surgery

Suitable candidates can complete the exam and surgery on the same trip — designed around your travel schedule.

Our Procedures

Choose the right vision solution

From flagship flapless laser to lens implants and cataract care — every procedure is matched to your eyes, not a template.

The Seoul Advantage

The maths work out —
even after the flight.

SMILE laser eye surgery costs $4,000–$6,500 per eye in the US, UK and Australia — often with long waitlists. In Seoul, you get the same FEMTO Z8 SMILE technology at a fraction of the price, and you can book and complete it on a single trip.

  • ✓ The same Ziemer FEMTO Z8 technology, at a lower cost than the US, UK or Australia
  • ✓ Pre-op precision exam included before every surgery
  • ✓ English-speaking staff on-site — zero language barrier
  • ✓ Combine your surgery with a trip to Seoul
See patient stories
Patient after SMILE LASIK at EYEONCE Seoul
10 minTypical procedure time
2–4 mmSMILE keyhole incision
Next-dayReturn to daily life
LifetimeAftercare commitment
Meet Your Doctor

A message from Dr. Baek Dong-won

EYEONCE's representative director answers the questions patients ask most — in his own words, from the exam room.

Real Patients

Watch what really happened

International patients share what actually happened — from their first fears to waking up the next morning without glasses.

SMILE LASIK — the realityFears vs. what really happened
Why fly to SeoulThe honest cost breakdown
Which surgery to chooseSMILE vs traditional LASIK
From the Middle EastYears of glasses — then 10 minutes
A SMILE journeyAt EYEONCE Gangnam
Cataract, restoredPremium IOL story
Verified on Google

Reviews, straight from Google

Our patients post these themselves. Open the map below and read them.

★★★★★

Had my Supra Clear X done here at Eyeonce. Great service, from front counter, examination, to surgery. Came it at 10am, done by 3pm. 1 on 1 interpretation service from the staff, and the optometrists and nurses were extremely professional as well. Thank you Doctor Park, looking forward to my clear vision. Recommend!

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Tan Kai Yang1 week ago
SMILE PRO View on Google →
★★★★★

I had a really good experience at Eyeonce Clinic. From the beginning, I appreciated that they never pressured me into purchasing or getting any specific treatments. Instead, they were very thorough and made sure to perform all of the necessary tests and examinations before making any recommendations. I originally went to the clinic because I was looking for treatment for dry eyes, but during my examination, they identified more pressing concerns, including retinal tears. I really appreciated that they took the time to look beyond the issue I originally came in for and made sure I was aware of what needed immediate attention. I felt like they genuinely prioritized my eye health rather than simply trying to sell me a treatment. Another thing I appreciated was the affordability. They were very helpful in explaining my options and finding treatments and care that were reasonable for me financially. The clinic also had translators available, which made a huge difference. They helped make sure I understood what was happening, what the doctors were explaining, and what to expect throughout the process. That made me feel much more comfortable and confident in the care I was receiving.

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Randi Dollar4 weeks ago
View on Google →
★★★★★

I was at this clinic last week doing a complete check-up of my sight and loved the experience, latest generation machines, personalized attention and even had a translator all the time with me, very friendly with the foreign country and excellent service

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Paula Herrera Alarcón1 month ago
View on Google →
★★★★★

I came for a detailed eye examination, and the whole process was very professional and well organized. The staff were kind, and the doctors explained my results clearly. I also liked that they used advanced equipment to check different parts of my eyes. Overall, I had a comfortable and informative experience, and I'm glad I decided to get my eyes checked.

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Niso Saidova1 month ago
View on Google →
★★★★★

Received CLEAR SMILE PRO eye surgery and had a wonderful experience! They were very helpful and informative prior, during, and post surgery. Ye Ji was the BEST and always willing to help! Very grateful for their consideration and had a great experience! 10/10 ❤️

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Tasmyn Ah Chow3 months ago
SMILE PRO View on Google →
★★★★★

Dr. Paik and the staff were incredibly nice and welcoming. I came in for a Pro SMILE LASIK consultation and they answered all of my questions thoroughly. I feel so much more at ease about my upcoming procedure. Would highly recommend to anyone considering getting LASIK!

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Alyssa Yi4 months ago
SMILE LASIK View on Google →
★★★★★

The clinic was clean and well organized. The staff were professional and friendly. I visited for dry eye treatment and noticed a clear improvement in my symptoms. The Chinese translator was very helpful and made communication easy throughout the visit. Overall, a very positive experience.

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Jenny Chiu4 months ago
Dry Eye Treatment View on Google →
★★★★★

I was recommended this clinic by coworkers because its detailed and smooth process. I had perfect vision the next day. The doctor and english translator was able to talk me through the process and the staff is very efficient and thorough. Excellent clinic to go to, I highly recommend.

K
Kyle Ancheta8 months ago
View on Google →
★★★★★

This clinic was clean and the workers were very helpful. They took several tests and offered great service. Would recommend!

J
John Lee1 year ago
View on Google →
★★★★★

Came here with my husband to help translate. Everyone here was so kind and helpful and whenever we asked a question we got a very detailed answer. We came in here to get lasik but decided to go with SMILE lasik instead and couldnt be happier with this decision!

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sharon chae1 year ago
SMILE LASIK View on Google →
★★★★★

I visited this clinic after searching around and reading reviews. Now I'm adding on to them. So, I was greeted by an interpreter as I can only speak English, to which was really helpful. They put me through a series of test to deem whether my eyes were suitable. As my astigmatism was my main concern, after reviewing my results, they suggested that SMILE would better suit be compared to lasik/lasek. Although lasik/lasek were my first options due cheaper pricing, SMILE was still recommended over the others due to my condition. The whole process took really fast and the procedure itself took 10 mins or less. Overall, today is my 2nd day and my vision is restored maybe 80%. I've been told that my vision will be blurry temporarily for the next few days and this is normal. Looking forward to the full recovery!

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nicholas boon1 year ago
SMILE View on Google →
★★★★★

Had my first appointment at the EyeOnce Eye Clinic. I have been experiencing a lot of problems with my eyes, and I felt it pertinent to go see the doctor. My experience was very efficient and smooth. I had a comprehensive eye health check-up, to which I was told my eyes were in good health, though the main concern was the dryness of my eyes. I didn't want to rush into having any surgery, to which they assured me that, I can come back any time. They recommended that I get the IPL treatment, which focuses on the dryness of the eyes. I look forward to my eyes responding well to the treatment. My experience was smooth and efficient. There is no long waiting period. Everything was done in detail. I will be returning next year for sure for my mole removals next year for sure. Thank you EyeOnce Eye Clinic. 10/10 recommend 💗 ❤️

K
Katlego Waitsi1 year ago
IPL Treatment View on Google →
★★★★★

EYEONCE Eye Clinic Gangnam is reviewed publicly on Google by patients from Korea, the US and the Middle East. Tap the map to read them all.

Good to Know

Frequently asked questions

SMILE and LASIK are minimally invasive, well-established procedures. The surgery itself takes about 10–15 minutes for both eyes, and most patients notice clearer vision within hours. We only proceed if your pre-op precision exam confirms you are a safe candidate. Full recovery guidance is provided on every procedure page.
Yes — if your eye exam results are suitable, many patients complete their exam and surgery on the same day. This is ideal if you are visiting Seoul on a limited schedule. Message us on WhatsApp with your travel dates and we'll plan everything around you.
Stop wearing soft contact lenses for at least 5–7 days before your exam (2–3 weeks for hard/RGP lenses) so your cornea returns to its natural shape for accurate measurement. Bring your glasses and any prescription records, arrange a companion or transport for surgery day, and avoid eye makeup on exam day.
As the cornea heals, vision recovers gradually and temporary haziness is completely normal. We recommend avoiding screens where possible and diligently using your prescribed eye drops and artificial tears for the first 1–3 months. If you feel a foreign-body sensation or pain, visit us immediately — or see a local ophthalmologist and then contact us.
EYEONCE Eye Clinic Gangnam is on floors 5–6 of Duo Sinnonhyeon, 368 Sapyeong-daero, Seocho-gu, Seoul. The nearest station is Sinnonhyeon (Line 9 and Sinbundang Line), a 3-minute walk from Exit 3, and Gangnam Station on Line 2 is a short ride away. If you are searching for an English-speaking eye clinic near Gangnam or Sinnonhyeon, we are in the middle of both, and roughly 60–75 minutes by taxi from Incheon International Airport.
Yes. If you ever notice a problem after surgery, contact us at any time. Through a detailed re-examination we will assess your condition and, where appropriate, assist with a re-treatment. Your outcome matters to us long after you fly home.
Ready to see clearly?

Your glasses-free life starts
with one message.

Tell us your prescription and travel dates. Our English-speaking team will tell you what fits and set up your visit — free of charge, no pressure.

Find Us

Getting to EYEONCE

A 3-minute walk from Sinnonhyeon Station, in Gangnam, and about 60–75 minutes by taxi from Incheon International Airport.

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EYEONCE Eye Clinic Gangnam

5–6F, Duo Sinnonhyeon, 368 Sapyeong-daero, Seocho-gu, Seoul, South Korea

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WhatsApp Consultation

+82-10-6308-0984 — English, Chinese, Mongolian & Thai

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Opening Hours

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.

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By Metro

Sinnonhyeon Station (Line 9 / Sinbundang Line) — 3 min walk. Gangnam Station (Line 2) nearby.

From Incheon International Airport (ICN)
Private taxi≈ 60–75 min · approx. ₩70,000–90,000 — the most direct option.
AREX + MetroAirport Railroad to Seoul Station (~50 min), transfer to Line 9 to Sinnonhyeon (~25 min). ≈ 90 min total.
Airport LimousineDirect bus toward Gangnam (~70–90 min), then a short taxi ride.
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