LASIK, SMILE and cataract surgery are offered by private hospitals across Thailand, and many visitors combine them with a trip. The checks that matter are the same as at home: a licensed doctor trained in eye surgery, a licensed hospital, an honest pre-operative test, and enough days in the country for the follow-up visits before you fly or go swimming.
This page covers the operation and the days around it, with no clinic recommendations and no prices. The surgeon who examines you decides whether you are suitable and when you may travel; what follows is what UK and Thai official sources say (checked November 2026).
Eye surgery in Thailand: the key checks (November 2026)
- Doctor's licence
- checkmd.tmc.or.th, the Medical Council's doctor search (use a normal browser)
- Hospital licence
- Facility licence (1998 Sanatorium Act); search via the Department of Health Service Support
- Laser correction age
- Over 18, with a stable glasses prescription (Royal College of Ophthalmologists, UK)
- Swimming after laser
- Most surgeons advise none for a week
- Flying
- No official waiting period found; ask your surgeon
- Insurance
- Laser correction is not covered by private health insurance schemes (RCOphth); check travel policies for elective-treatment exclusions
Laser correction and cataract surgery are different operations
Laser vision correction changes the shape of the front of the eye so that you need glasses or contact lenses less, or not at all. LASIK and lenticule extraction (SMILE is the best-known brand) work under a thin layer of the cornea. Surface treatments such as PRK, LASEK and TransPRK work on the outer surface and need a bandage contact lens for the first days. The UK Royal College of Ophthalmologists (RCOphth) calls all of these elective: you choose to have them, they are not needed for your health.
Cataract surgery replaces a cloudy natural lens with an artificial one. According to the NHS it is usually done under local anesthetic, takes 20 to 45 minutes, and most people go home the same day. Laser and lens operations for sight correction take about 20 to 30 minutes, again usually with no overnight stay. The recovery rules below, not the operating time, decide how long your trip must be.
If you only want new glasses or contact lenses, you do not need an eye surgeon at all; our page on getting glasses and lenses made in Thailand explains who tests eyes in optical shops.
Checking the eye surgeon before you book
Thai doctors are licensed by the Medical Council of Thailand. You can look up a name in the council's public doctor search at checkmd.tmc.or.th. The site refuses automated requests, so open it in an ordinary browser. Ask for the full name of the surgeon who will operate, in Thai and in English, not just the name of the eye center.
A licence shows that a person is a doctor. It does not show training in eye surgery. The Royal College of Ophthalmologists of Thailand is the specialist body for eye doctors, but we could not open its site to confirm whether it publishes a public register. Ask the surgeon directly about their ophthalmology training, how long they have done this operation and how many they do. The way to judge a surgeon's licence and training is set out in more depth in our guide to cosmetic surgery in Thailand, and the same questions work for eye surgery.
Is the eye center itself licensed?
An eye center needs a facility licence of its own, issued under Thailand's 1998 Sanatorium Act (the law on medical facilities). A search of licensed private facilities, run for the health ministry's Department of Health Service Support (HSS), is at hosp.hss.moph.go.th, but it was blocked from outside Thailand when it was checked, so you may only be able to use it once you arrive. You can always ask the hospital to show its facility licence.
International accreditation, such as JCI (Joint Commission International), is voluntary and separate from the licence. The British government publishes a hospital-by-hospital list for Thailand that marks which ones hold it. How private and government hospitals admit foreign patients, take deposits and bill is covered in our overview of hospital care in Thailand.
The pre-operative check and who is not suitable
A proper assessment comes before any date is fixed. The RCOphth patient leaflet says you must be over 18 and have a stable glasses prescription, normally with no change greater than 0.5 dioptres in the last two years. Laser correction may not be suitable if you have a cataract or problems with the surface of the eye. A clinic that sets an operation date before it has examined you has skipped this step.
Bring your recent glasses prescriptions from home so the surgeon can see whether your eyes have been stable, and expect the common side effects to be explained. The NHS lists glare, halos, starbursts, floaters, blurred vision, sore or dry eyes and red blotches, which normally improve within a few months, and rarer complications such as a detached retina, serious permanent loss of vision, or the need for a second operation.
The flight home is part of the treatment plan. No NHS page, RCOphth leaflet or UK aviation authority page gives a fixed number of days before you may fly after LASIK, SMILE or cataract surgery. Ask your surgeon when you may fly, and book the return only after every follow-up visit fits before it.
Follow-up visits and the wait before flying
The RCOphth tells patients to attend all review appointments, even if the eye feels fine. Surface treatments need the bandage contact lens removed, typically between day four and day seven, and the RCOphth notes that surface-laser patients may need a week or longer before their sight reaches the driving standard. Results can take up to two years to settle, and enhancements are normally included for up to two years, which is hard to use from the other side of the world.
Some airlines ask for a doctor's letter after recent surgery; our page on fit-to-fly letters and medical certificates explains when a letter is needed and what it should say. Ask for a written report in English of the operation and the drops, for your own eye doctor at home.
Swimming, sea water and pools after surgery
This is where a beach holiday and eye surgery clash. The RCOphth says most surgeons recommend no swimming for a week after laser correction, and no contact sports for a month after LASIK. Washing, showering, the gym and jogging are usually fine from day one after LASIK or SMILE.
The NHS advice after cataract surgery is stricter: do not get water in the eye, and do not go swimming, even with goggles, until your doctor says normal activities are fine. Do not rub the eye, and avoid eye make-up, heavy lifting and sport. How eye infections spread through dirty water is covered in our guide to pink eye and other eye infections. If the surgeon clears you for the sea, check the local beach water quality before you swim.
Sun, glare, wind and dust
The NHS says to wear sunglasses or goggles after laser surgery if you are advised to, sunglasses after cataract surgery if lights seem bright, and an eye shield or glasses in windy weather. Glare is a common short-term side effect, and the sun is strong; see our page on heat and sun in Thailand. On a windy beach or a boat, wear what your surgeon gave you, and in the haze months check our page on PM2.5 air pollution.
The NHS says not to drive home after a laser operation, nor at night until you have recovered, and not to drive at all after cataract surgery until your sight is normal. That rules out a rented scooter for the first part of your stay.
Red flags: contact the surgeon at once
The RCOphth tells patients to contact their surgeon without delay if they have increasing pain, increasing sensitivity to light, increasing redness or worsening blur, or an injury to the eye followed by pain, blurring or watering. The NHS says to get urgent help for a sudden shower of floaters, flashes of light, a dark curtain or shadow across your sight, or sudden blurred vision. Keep the clinic's out-of-hours number in your phone; in an emergency, Thailand's ambulance number is 1669, and our list of Thai emergency numbers has the others.
Insurance and what happens if it goes wrong
The RCOphth states that refractive surgery is not covered by private health insurance schemes. Read any travel policy's exclusions for elective or planned treatment before you rely on it; our guide to travel insurance for Thailand explains what a policy normally covers. Get the clinic's aftercare and enhancement terms in writing.
If you have a complaint, the UK Foreign Office advises taking it first to the international liaison officer at the hospital; the Thai government's 24-hour helpline is 1111. It also says it does not usually contact or visit people who traveled specifically for medical treatment. The written contract and records are your best protection.
Frequently asked questions
How soon can I fly after LASIK in Thailand?
No official UK health source we checked gives a fixed waiting time for flying after LASIK, SMILE or cataract surgery. Ask your surgeon, and plan so that every follow-up visit comes before your flight home.
Can I swim in the sea after laser eye surgery?
The Royal College of Ophthalmologists says most surgeons recommend no swimming for a week after laser vision correction. After cataract surgery the NHS says no swimming, even with goggles, until your doctor clears you. Follow your own surgeon's instructions.
Who is not suitable for LASIK?
According to the Royal College of Ophthalmologists, you must be over 18 and have a stable glasses prescription, normally with no change of more than 0.5 dioptres in two years. People with cataracts or eye-surface problems may be unsuitable. The surgeon's examination decides.
Does travel insurance cover LASIK complications abroad?
Do not assume it does. The Royal College of Ophthalmologists says refractive surgery is not covered by private health insurance schemes. Read your travel policy's wording on planned or elective treatment and ask the insurer before you book.
How do I check a Thai eye surgeon's licence?
Search the surgeon's name on the Medical Council of Thailand's doctor search at checkmd.tmc.or.th, using a normal browser. The licence confirms the person is a doctor; ask separately about specialist training in ophthalmology and experience with your operation.
Sources
- Royal College of Ophthalmologists (UK) – Laser vision correction: patient information (reviewed 3 December 2024; checked November 2026)
- NHS – Laser eye surgery and lens surgery (reviewed 15 February 2024; checked November 2026)
- NHS – Cataract surgery (reviewed 6 March 2025; checked November 2026)
- Medical Council of Thailand – Doctor licence search (checked November 2026; read in a browser, blocks scripts)
- Department of Health Service Support – Licensed private medical facilities (checked October 2026)
- UK Foreign, Commonwealth and Development Office – Healthcare and medical services in Thailand (updated 26 August 2026; checked October 2026)