Understanding Pterygium

How to say it

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What causes a pterygium?

Experts don’t know exactly what causes a pterygium, but it's believed that long-term exposure to ultraviolet (UV) rays from the sun may be a major factor. People who spend a lot of time outdoors or live in hot, dry climates are more likely to get a pterygium. So are people who surf. The condition is sometimes called surfer’s eye.

Other possible factors are:

• Having dry eyes

• Being exposed to wind and dust

Symptoms of a pterygium

A pterygium may not cause any symptoms, especially if it's small. But if it keeps on growing, you may feel like you have something in your eye. You may also have:

• Redness and swelling

• Dryness

• Itching

• Burning

• Blurry vision

These symptoms may look like other health problems. Always see your healthcare provider for a diagnosis.

Treatment for a pterygium

Often, no treatment is needed for a pterygium. From time to time, your healthcare provider will check its size and ask you about any discomfort. If the growth starts to bother you, you may need:

• Eye drops. These can ease dryness and irritation. You may be able to use over-the-counter artificial tears. Or your healthcare provider may give you prescription eye drops.

• Other medicines. Your healthcare provider may prescribe ointments and gels, such as topical decongestants, nonsteroidal anti-inflammatory medicines (NSAIDS), or steroids.

• Surgery. This treatment is often done only if the growth becomes large and affects your eyesight. That’s because pterygia sometimes grow back. When they do, they may be bigger and cause worse symptoms.

When to call your healthcare provider

Call your healthcare provider right away if any of the following occur:

• Vision gets worse

• Fever of 100.4°F (38°C) or higher, or as directed by your healthcare provider

• Symptoms that don’t get better, or get worse

• New symptoms