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Pterygium (Surfer’s Eye) in Singapore: Causes & Treatment

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Pterygium (Surfer's Eye) in Singapore

Written & reviewed by the BestDoctors.sg editorial team · Last updated 2 Jul 2026 · General information, not medical advice

Quick answer. A pterygium (‘surfer’s eye’) is a fleshy, wing-shaped growth of the conjunctiva that extends onto the cornea. UV exposure from the sun is the most strongly linked cause, making it relatively common in tropical, sunny Singapore, especially in people who spend long hours outdoors. It may cause redness, irritation, a foreign-body sensation, and — if it grows over the cornea — astigmatism and blurred vision. Mild cases are managed with lubricants and UV protection. Surgery (excision with conjunctival autograft) is considered when vision is affected or irritation persists; with this technique recurrence is low (under about 5%). Prevent it with UV-blocking sunglasses and a wide-brimmed hat outdoors.

A pterygium (pronounced ‘tuh-RIJ-ee-um’), nicknamed surfer’s eye, is a fleshy, often triangular or wing-shaped growth that starts on the conjunctiva (the white surface of the eye) and can extend onto the cornea. It is strongly linked to ultraviolet (UV) light exposure, which is why it is relatively common in hot, sunny countries near the equator — including Singapore — and in people who work or play outdoors for long hours.

Many pterygia are harmless and slow-growing, but some cause irritation or affect vision. This guide explains the causes, symptoms, when surgery is needed, the risk of recurrence, and how to protect your eyes in Singapore’s tropical climate.

At a glance

Pterygium at a glance (an eye doctor confirms diagnosis and whether treatment is needed)
Aspect Details What to do
Main cause UV/sunlight exposure is the most likely contributing factor; dust and wind may add Protect eyes from UV outdoors
Typical symptoms Visible growth, redness, irritation, foreign-body sensation, dryness Lubricating drops; review if growing
Vision effects Astigmatism or blurred vision if it encroaches onto the cornea/visual axis See an eye doctor for assessment
Surgery Excision with conjunctival autograft when vision is affected, irritation persists, or for cosmesis Discuss timing with an eye surgeon
Recurrence Low with conjunctival autograft technique (commonly under ~5%) Use UV protection and post-op drops as advised

What is a pterygium and why is it common in Singapore?

A pterygium is a growth of conjunctival tissue that creeps from the white of the eye onto the clear cornea, usually on the side nearest the nose. The most strongly linked cause is chronic UV light exposure; dry, dusty and windy conditions may also contribute. Because Singapore sits near the equator with strong year-round sunshine, and many people spend time outdoors, pterygium is relatively common locally — particularly among those with high outdoor sun exposure such as outdoor workers and sportspeople.

Symptoms to look out for

A pterygium may cause:

  • A visible fleshy growth on the white of the eye, sometimes extending toward the cornea.
  • Redness and irritation, often worse with sun, wind or dust.
  • A gritty or foreign-body sensation and dryness.
  • Blurred vision or astigmatism if the growth distorts or grows across the cornea.

Some pterygia stay small and quiet for years; others slowly enlarge. Recurrent redness or any change in vision should prompt an eye check.

When is surgery needed?

Many pterygia do not need surgery and are managed with lubricating eye drops, mild anti-inflammatory drops when irritated, and good UV protection. Eye drops relieve symptoms but do not make the growth disappear. Surgery is considered when:

  • The pterygium affects vision (e.g. growing over the cornea or causing significant astigmatism).
  • There is persistent irritation or recurrent inflammation not controlled by drops.
  • It is causing significant cosmetic concern.

The preferred operation is excision with a conjunctival autograft, where the growth is removed and a piece of the patient’s own healthy conjunctiva is used to cover the area.

Recurrence after surgery

A key concern with pterygium surgery is that it can grow back. The good news is that the modern conjunctival autograft technique — the gold standard — has a low recurrence rate, commonly reported under about 5%, much lower than simple removal alone. Recurrence is more likely if post-operative drops are not used as directed or if the eye gets heavy sun exposure after surgery, so UV protection remains important even after an operation.

Prevention: protecting your eyes in the tropics

Because UV is the main driver, prevention focuses on limiting UV exposure:

  • Wear sunglasses that block UVA and UVB (ideally wraparound) when outdoors or driving.
  • Add a wide-brimmed hat for extra shade — though sunglasses give better eye protection than a hat alone.
  • Protect the eyes in dusty or windy environments and keep them lubricated if they feel dry.

These measures help prevent pterygium and reduce recurrence after surgery.

When to see an eye doctor

See an eye doctor or optometrist if you notice a growing spot on the white of the eye, persistent redness or irritation, or any change in vision. A professional can confirm whether it is a pterygium (or a related growth called a pinguecula), monitor its size, and advise whether drops or surgery are appropriate. As with any eye concern, sudden vision loss, severe pain or light sensitivity warrants prompt medical attention rather than waiting.

What to expect at the eye appointment

An eye doctor or optometrist can usually diagnose a pterygium by examining the front of the eye with a slit lamp. They will assess how far the growth extends towards the cornea, check whether it is causing astigmatism, and measure your vision. If it is small and not affecting sight, they may simply monitor it over time and advise on lubricants and sun protection.

What to expect with surgery and recovery

Pterygium removal with a conjunctival autograft is usually a short day procedure done under local anaesthetic. Afterwards the eye is commonly red, watery and feels gritty for one to two weeks while it heals, and you will be given drops to reduce inflammation and prevent infection.

  • Use the prescribed eye drops exactly as directed to lower the chance of recurrence.
  • Avoid rubbing the eye, swimming and dusty or smoky environments while it heals.
  • Wear UV-blocking sunglasses outdoors, even after the eye has settled.
  • Attend follow-up reviews so healing and any early regrowth can be checked.

Common questions

Is a pterygium the same as a cataract?

No. A pterygium is a surface growth on the white of the eye, while a cataract is clouding of the lens inside the eye. They are separate conditions.

Can a pterygium turn into cancer?

A pterygium is a benign growth. However, any unusual or rapidly changing spot on the eye should be checked by an eye doctor to confirm the diagnosis.

Will removing it improve my vision?

If the growth was causing astigmatism or covering part of the cornea, surgery may improve vision. Your eye surgeon can advise based on your examination.

Related guides

Sources

Last updated 22 June 2026. Prices are typical market ranges gathered from the cited sources and vary by clinic, doctor and individual case — they are not quotes. This guide is general information, not medical advice; always consult a qualified, MOH-accredited doctor before any treatment.

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Frequently asked questions

Is a pterygium dangerous or cancerous?

A pterygium is a benign (non-cancerous) growth and is usually harmless. The main issues are irritation and, if it grows onto the cornea, blurred vision or astigmatism. However, any new or unusual eye growth should be checked by an eye doctor to confirm the diagnosis and rule out other conditions.

Can a pterygium be removed without surgery?

No — eye drops (lubricants and anti-inflammatories) can relieve redness and irritation but cannot remove the growth. If the pterygium affects vision, causes ongoing irritation, or is a cosmetic concern, surgical excision with a conjunctival autograft is the established treatment.

Will a pterygium come back after surgery?

It can, but the conjunctival autograft technique — the current gold standard — has a low recurrence rate, commonly reported under about 5%. Using your prescribed eye drops and protecting the eye from UV after surgery further reduces the chance of it returning.

How can I prevent a pterygium in Singapore's climate?

Limit UV exposure: wear sunglasses that block UVA and UVB (wraparound styles are best) when outdoors or driving, add a wide-brimmed hat for shade, and protect your eyes in dusty, windy conditions. These steps lower both the risk of getting a pterygium and of it recurring after surgery.

What's the difference between a pterygium and a pinguecula?

A pinguecula is a yellowish bump on the conjunctiva that does not grow onto the cornea, while a pterygium is a wing-shaped growth that can extend onto the cornea and affect vision. Both are linked to UV exposure. An eye doctor can tell them apart and advise on monitoring or treatment.