A pterygium is a wing-shaped growth of the conjunctiva – the clear surface membrane of the eye – that extends onto the cornea, driven over years by ultraviolet light, wind and dust. Small ones cause redness and a gritty, irritable eye; larger ones tug on the cornea, induce astigmatism and eventually encroach on the visual axis and blur sight. When it needs treating, surgery removes the growth and covers the bare area with a graft of your own surface tissue, so the eye heals smoothly and is far less likely to recur.
What a pterygium is and when it needs surgery
Not every pterygium needs removing. Many small, stable, symptom-free ones are simply watched, with UV-blocking wraparound sunglasses, lubricant drops and the occasional short course of mild steroid for flare-ups. Surgery becomes the right step when the growth threatens the visual axis, induces significant astigmatism, is repeatedly inflamed despite drops, restricts eye movement, or has atypical features that need histology to exclude ocular-surface squamous neoplasia.
The aim of surgery is twofold: to clear the cornea and restore a smooth optical surface, and to reconstruct the surface so the pterygium does not grow back. Modern grafting techniques have transformed recurrence rates compared with the old ‘bare-sclera’ excision that is no longer used.
Pterygium surgery techniques
The technique is matched to whether the pterygium is primary or recurrent and how much healthy surface tissue is available. All are day-case procedures under local anaesthetic; the eyelid skin is never cut.
If you also have a cataract, the order matters – a large pterygium should usually be removed first so the measurements for cataract surgery are accurate. Keeping the ocular surface healthy with good lid and surface care also lowers recurrence.
Wondering whether your pterygium needs removing or just watching? One consultation with corneal imaging gives a clear answer.
Book your assessmentHow pterygium surgery is done
Pterygium removal is a day-case operation under topical or sub-Tenon’s local anaesthetic, taking about 25–45 minutes per eye. The surgeon carefully dissects the pterygium head off the cornea and removes the abnormal surface tissue, leaving a smooth corneal bed.
A small graft of healthy conjunctiva is then taken from under the upper lid and laid over the bare area, secured with fibrin tissue glue or fine dissolving sutures; in recurrent or aggressive disease a brief application of low-dose mitomycin C, or an amniotic membrane graft, may be added. The eyelid skin is never cut. You go home the same day with a protective shield and a short course of drops.
Recovery and aftercare
First few days
The eye feels gritty, red and watery – this is normal as the graft settles. Paracetamol or ibuprofen is usually all that is needed. Use your antibiotic and steroid drops as prescribed and rest the eye.
First 1–2 weeks
Vision in the operated eye may be slightly blurred from surface irregularity. Most patients drive within 24–48 hours if the fellow eye meets the DVLA standard. Avoid swimming and dusty environments.
4–8 weeks
The grittiness and watering settle as the ocular surface heals. The redness over the graft fades steadily. Steroid drops are tapered on the schedule your surgeon sets.
3–6 months & beyond
The conjunctival autograft becomes almost invisible, blending with the surrounding surface. Lifelong UV-blocking sunglasses are the single best way to prevent recurrence; annual review for 2 years is advised.
Pterygium surgery cost in the UK (2026)
Private self-pay pterygium surgery in the UK in 2026 is typically £3,200–5,800 per eye for excision plus a conjunctival autograft (the modern gold standard), rising to £3,800–6,500 per eye when intra-operative mitomycin C is added for recurrent or aggressive disease. The fee covers the consultant cornea and ocular-surface assessment, anterior-segment OCT and topography, the day-case operation, and a structured 12-week follow-up. An amniotic membrane graft adds £850–1,500, and histology – sent for all atypical or recurrent lesions – adds £150–350.
Most major UK insurers (Bupa, AXA, Aviva, Vitality, WPA) cover pterygium removal where there are documented visual symptoms, chronic or recurrent inflammation, restricted eye movement, or atypical features needing histology – subject to written pre-authorisation; cosmetic-only surgery is usually excluded. See the full price list.
Pterygium surgery FAQs
How much does private pterygium surgery cost in London in 2026?
Private self-pay pterygium surgery in the UK in 2026 typically costs £3,200–5,800 per eye for excision plus a conjunctival autograft (the modern gold standard), rising to £3,800–6,500 per eye when intra-operative mitomycin C is added for recurrent or aggressive disease. The fee covers the consultant cornea and ocular-surface assessment, anterior-segment OCT and topography, the day-case operation under local anaesthetic, and a structured 12-week follow-up. An amniotic membrane graft adds £850–1,500 and histology, sent for all atypical or recurrent lesions, adds £150–350.
Does a pterygium always need to be removed?
No. Many small, stable, symptom-free pterygia are safely observed with UV-blocking wraparound sunglasses, preservative-free lubricants and the occasional short course of mild steroid drops for flare-ups. Surgery is recommended when the growth threatens the visual axis, induces significant astigmatism, is repeatedly inflamed despite drops, restricts eye movement, or has atypical features that need histology to exclude ocular-surface squamous neoplasia.
What is the chance my pterygium will come back after surgery?
With modern excision plus a conjunctival autograft, the recurrence rate is under 5% in published series, and intra-operative mitomycin C keeps it low even in recurrent or aggressive cases. The obsolete bare-sclera technique (excision alone, no graft) recurs in 30–80% of eyes and is no longer offered in mainstream UK practice. Lifelong daily UV-blocking sunglasses are the single most important factor in preventing recurrence.
Does pterygium surgery hurt and how long does it take?
Pterygium surgery is a day-case operation taking about 25–45 minutes per eye under topical or sub-Tenon’s local anaesthetic; the eyelid skin is not cut. The eye feels gritty and may water for the first 4–8 weeks, with paracetamol or ibuprofen usually all that is needed for the first few days. You go home the same day, and there is no visible long-term scar.
When can I drive after pterygium surgery?
Most patients drive 24–48 hours after surgery, provided the fellow eye is unaffected and they meet the DVLA standard (reading a number plate at 20 metres with both eyes open and any usual glasses). The operated eye is often slightly blurred for one to two weeks from surface irregularity, but the other eye usually allows driving. If both eyes are operated in the same session, driving should be deferred for 7–14 days.
Should I have my pterygium removed before cataract surgery?
Usually yes. A large pterygium near the visual axis distorts corneal topography and keratometry, which makes the lens-power calculation for cataract surgery inaccurate and risks a refractive surprise. Best practice is to remove the pterygium first, let the cornea stabilise for 6–12 weeks, repeat the measurements, and then proceed with cataract surgery.