Cataract and Laser Eye Surgery in Thailand: Costs, Risks and the Flight Home

Cataract surgery and laser eye surgery are among the shortest and most predictable operations people travel to Thailand for: both are usually done as day cases under local anaesthetic, a typical trip lasts 7 to 10 days, and Bangkok private prices run at roughly 45,000 to 90,000 baht per eye for a standard cataract operation and 50,000 to 110,000 baht for laser correction of both eyes. What makes eye surgery abroad go well or badly is rarely the operation itself. It is the lens you choose, the screening you get before the laser, and who looks at your eye once you are home.

I hear about eye surgery more than almost anything else from readers over 60, usually framed as “it’s only a cataract”. Often that is true. But “only” hides a set of decisions that are hard to undo, and this guide works through them from the patient’s side, with the clinical content checked by a doctor.

What cataract surgery involves

Cataract surgery replaces the clouded natural lens of the eye with a clear artificial one, and it is the most commonly performed operation in the NHS, with several hundred thousand done in England each year¹. The standard technique, phacoemulsification, uses ultrasound through an incision of around 2 to 3 millimetres to break up the cloudy lens, which is then removed and replaced with a folded intraocular lens. The operation usually takes 30 to 45 minutes, is done under local anaesthetic drops or an injection, and you go home the same day.

Thai private hospitals use the same technique and the same international lens manufacturers. In the large Bangkok hospitals the eye departments are run by ophthalmologists trained to the Royal College of Ophthalmologists of Thailand’s standard, many with fellowships in the UK, Australia or the United States. NICE’s cataract guideline is worth knowing about even though you are going private: it says referral should be based on how the cataract affects your daily life rather than on a vision score alone, and that second-eye surgery should be offered on the same basis as the first². If you are on a long NHS wait, that framing helps you decide whether travel is solving a real problem.

The lens choice is the real decision

The most consequential choice in cataract surgery is the type of replacement lens, because it decides how you see for the rest of your life and it cannot easily be changed. There are three broad families³:

• Monofocal lenses give sharp vision at one distance, usually far, and most people then need reading glasses. This is the standard NHS lens.
• Toric lenses correct astigmatism as well, and suit people with more than about 1.0 to 1.5 dioptres of corneal astigmatism.
• Multifocal and extended depth of focus lenses aim to reduce dependence on glasses at several distances, at the cost of a higher chance of halos and glare at night and some loss of contrast.

Premium lenses are where quotes in Thailand diverge most, and where the sales pressure tends to sit. A toric or multifocal lens commonly adds 20,000 to 80,000 baht per eye to the price. They can be excellent for the right eye, but they are less forgiving of other eye conditions such as macular degeneration, glaucoma or a previous laser procedure. Ask the surgeon, in writing, which lens model they propose, why that one for your eyes, and what the alternatives are. A hospital that steers everyone towards its most expensive lens before seeing your scans is telling you something; the wider pattern is described in red flags and how to avoid them.

Laser vision correction: LASIK, PRK and SMILE

Laser eye surgery reshapes the cornea to correct short sight, long sight and astigmatism, and it is a different proposition from cataract surgery: it treats a healthy eye for convenience, so the screening matters even more. NICE has assessed photorefractive laser surgery and considers it safe and effective in appropriately selected patients². It is not normally available on the NHS¹.

The three main procedures differ in how the laser reaches the cornea. LASIK creates a thin flap, reshapes the tissue beneath and lays the flap back; vision recovers within a day or two. PRK (surface ablation) removes the surface layer instead of making a flap; it suits thinner corneas but is more uncomfortable for 3 to 5 days and slower to sharpen. SMILE removes a small disc of tissue through a keyhole incision of about 2 to 4 millimetres and is offered at several Bangkok centres, usually at the top of the price range.

Suitability comes first. Clinics should measure corneal thickness and map the corneal shape, because thin or irregular corneas raise the risk of ectasia, a rare progressive weakening that occurs in the region of 1 in 1,000 or fewer properly screened patients. You should be over 18, with a prescription that has been stable for at least a year and often two. Dry eye is the most common side effect, affecting a large share of patients for the first 3 to 6 months. A clinic that books a laser date before it has scanned your eyes has skipped the step that protects you most.

The risks, in numbers

Cataract surgery is very safe, and knowing the actual figures is more useful than a reassuring adjective. Drawing on Royal College of Ophthalmologists guidance and NHS patient information:

• Vision improves for the large majority of people whose eyes are otherwise healthy.
• Losing the sight, or the eye, as a result of the operation: rare, put at less than 0.03% (under 1 in 3,000) in one NHS hospital’s patient information⁴.
• Infection inside the eye (endophthalmitis): less than 1 in 1,000 where an antibiotic is routinely injected into the eye at the end of surgery⁵.
• A tear in the lens capsule during surgery, which can lead to further surgery: around 2 in 100 in UK figures⁵.
• Retinal detachment in the following months or years: uncommon, but more likely in very short-sighted eyes⁴.
• Clouding of the membrane behind the new lens (posterior capsule opacification): roughly 5 to 30 in 100 within five years with modern acrylic lenses⁴.

That last item matters for travellers more than the others. It is not a failure of the operation and it is easily treated with a YAG laser, an outpatient procedure that takes about 5 to 10 minutes. But it often appears a year or more after surgery, which means you will almost certainly have it done at home, by someone who did not do the original operation. Build that into your plans from the start.

The rare serious events are exactly why the hospital matters. Accredited hospitals are surveyed on infection control, sterile processing and medication management, which are the systems that keep endophthalmitis rare⁶. Confirming accreditation is current is covered in choosing a hospital and JCI accreditation.

What it costs, and what the quote should include

Eye surgery is one of the procedures where the saving over UK private prices is real but smaller than the headline numbers for orthopaedic or cosmetic surgery. Indicative Bangkok private hospital prices I have seen in readers’ quotes during 2025 and 2026, at roughly 44 to 46 baht to the pound:

Procedure	Typical Bangkok private price
Cataract surgery, monofocal lens	45,000 to 90,000 baht per eye
Cataract surgery, toric or multifocal lens	70,000 to 160,000 baht per eye
LASIK, both eyes	50,000 to 80,000 baht
SMILE, both eyes	80,000 to 110,000 baht

UK private cataract surgery commonly runs to about £2,000 to £3,500 per eye with a standard lens, and laser correction to about £1,500 to £2,500 per eye. Once you add flights and 7 to 10 nights of accommodation, the saving on one cataract can shrink to very little, while a two-eye cataract trip or laser on both eyes leaves more room. The full cost picture, including the items people forget, is in how much surgery costs in Thailand.

Ask that the quote names the lens model, and states whether it includes the pre-operative biometry scans, the surgeon’s and anaesthetist’s fees, eye drops, and the next-day and one-week checks. The NHS is clear that arranging treatment abroad, including checking what is and is not covered, is your own responsibility⁷.

How long to stay, and when you can fly

Plan on about 7 to 10 days for one cataract or a laser procedure on both eyes, and up to two weeks if both eyes have cataract surgery on separate days. A typical cataract itinerary looks like this: arrive, a day of scans and consultation, surgery, a check the next morning, several quiet days using drops, then a check around day 7 before you fly. If the second eye is done in the same trip, it is usually a few days to a week after the first, once the first eye has settled.

The flight itself is less of a barrier than after most surgery. UK Civil Aviation Authority guidance for health professionals suggests about 1 week should pass before flying after an operation inside the eye, which includes cataract surgery, and that fits neatly with the day 7 check; it gives no specific figure for corneal laser surgery, so ask your surgeon⁸. The exception is retinal surgery where a gas bubble is placed in the eye: travel may need to be delayed for about 2 weeks with one commonly used gas and about 6 weeks with another, because the bubble expands as cabin pressure falls and can cause a dangerous rise in eye pressure. If a cataract operation becomes complicated and needs retinal work, your flight home changes completely. That is one reason to leave slack in the booking, as set out in when is it safe to fly after surgery.

The father of a neighbour in my building, a retired engineer from Bristol who was staying with her for the winter, had his first cataract done here two years ago. The operation took under half an hour and he was reading the menu at lunch. What he had not planned for was the drops: four times a day for four weeks, two different bottles, five minutes apart, which his daughter ended up managing because he could not see well enough to aim. He was glad he had not tried it alone in a hotel.

Aftercare once you are home

Good eye aftercare is mostly about knowing who to call before anything goes wrong. Full recovery after cataract surgery usually takes around 4 to 6 weeks¹, and you will need an optometrist’s sight test after that for new glasses. In the first weeks, sudden loss of vision, increasing pain, or a red eye that is getting worse needs same-day assessment: at home that means an eye casualty department or A&E, not an email to Bangkok.

Before you leave Thailand, collect your operation notes, the lens make, model and power for each eye, your post-operative prescription and your drop regime, all in English. Tell your GP and optometrist you are having the surgery before you go, and ask where you would be seen if something went wrong. The longer version of this is in aftercare when you get home.

Eye surgery suits medical travel better than most operations: the procedure is short, the flight constraint is small, and the techniques are the same everywhere. The people I have seen do it well chose their lens slowly, insisted on proper scans, and had the home end arranged before they flew. That is general information, not medical advice; whether an operation is right for your eyes, and which lens or laser, is for the ophthalmologist who examines you.