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A pterygium is a raised, wedge-shaped growth of tissue that starts at the corner of the eye and can extend onto the cornea — commonly linked to long-term sun, wind, and dust exposure, and common in people who spend a lot of time outdoors without eye protection.

A pterygium often develops slowly and painlessly, but common signs include:
Not every case needs treatment — many people live comfortably with a small, stable pterygium for years — but any growth that's enlarging, distorting vision, or persistently uncomfortable is worth getting assessed.
Not every pterygium needs surgery. Mild cases are often managed with preservative-free artificial tears, cool compresses, and UV-blocking sunglasses. Surgery is recommended when the growth starts distorting the cornea's shape, causing astigmatism, approaching or blocking central vision, or causing persistent irritation that conservative care can't control.
Pterygium removal is done under local anaesthesia and isn't painful, though some pressure sensation during the procedure is normal. The standard technique, conjunctival autograft, removes the pterygium and covers the area with a small graft of the eye's own healthy tissue — this significantly reduces the chance of the growth coming back compared to older techniques.
After the pterygium is removed, a thin piece of healthy tissue from under your upper eyelid (a conjunctival autograft) is placed over the bare area. It can be held in place with very fine stitches or with a special medical tissue glue (fibrin glue) made from purified human blood proteins. Both methods work well; the main differences are comfort, cost and a small difference in the chance of the growth coming back.
| Fibrin glue | Stitches | |
|---|---|---|
| Comfort after surgery | Usually more comfortable, less gritty feeling | Stitches can feel scratchy until they dissolve or are removed |
| Operation time | Shorter | Longer |
| Chance of the pterygium coming back | Slightly lower in research studies | Slightly higher, but still low with a graft |
| Stitch removal | Not needed | Sometimes needed, depending on the stitch type |
| Graft moving out of place | Slightly more likely, usually in the first days | Less likely |
| Cost | Higher, because the glue kit is expensive | Lower |
Your surgeon will suggest the method that suits your eye, the size of the pterygium and your preference. Tell the doctor if you have had an allergic reaction to tissue glue or blood products before.
Redness and mild discomfort in the first three to four days are normal and gradually improve. Most people with desk jobs return to work within a few days; more physically demanding or outdoor jobs may need one to two weeks. Many patients also notice their dry eye symptoms improve after surgery, since removing the growth restores a smoother, more even eye surface for tears to spread across.
A few practical notes for the recovery period:
Pterygium surgery is generally very safe. The main thing to watch for long-term is recurrence, which the conjunctival autograft technique substantially reduces compared to older methods. Contact the clinic if you notice worsening pain, unusual discharge, or vision changes during recovery — these are uncommon but worth checking promptly.
Dr. Dhaval Patel, MD (Ophthalmology, AIIMS New Delhi), uses the conjunctival autograft technique to minimise recurrence risk. Read our patient guide on pterygium, or learn about Dr. Patel's credentials and experience.
Noticed a growth or persistent irritation on your eye's surface? Book a consultation or message us on WhatsApp.
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