What Is a Pterygium (and Why Australians Are So Prone to Them)?
Learn what a pterygium is, why Australians are more prone to it, common symptoms, causes linked to UV exposure, and the best treatment options to protect your eye health.
MARSDEN Eye Specialist 
If you’ve ever noticed a fleshy, pinkish growth creeping across the white of your eye—or seen it on a fellow Aussie at the beach—you’re likely looking at a pterygium.
Affectionately nicknamed "Surfer’s Eye," this pterygium eye condition is incredibly common down under. But what exactly is it, why does our sun-drenched continent create the perfect storm for it, and how is it managed?
Let’s dive into everything you need to know about a pterygium, including the most common pterygium symptoms and the path to effective pterygium treatment.
What Is a Pterygium?
To answer simply: what is a pterygium? A pterygium is a non-cancerous, triangular growth of fleshy tissue that starts on the conjunctiva (the clear membrane over the white part of the eye) and can slowly spread onto the cornea (the clear front window of the eye).
While it is benign (non-cancerous), it isn’t just a cosmetic concern. If left to grow unchecked, it can alter the shape of your cornea, leading to distorted vision (astigmatism) or even partially block your sight.
Why Are Australians So Prone to Pterygiums?
It’s no coincidence that Australia has some of the highest rates of pterygium in the world. The development of this condition is heavily linked to environmental factors that are practically part of the Australian lifestyle:
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Intense UV Exposure: The primary cause of a pterygium is ultraviolet (UV) radiation from the sun. Australia’s proximity to the equator, coupled with historically thin ozone layers, means our UV levels are exceptionally high.
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The "Surfer’s Eye" Lifestyle: Whether you’re surfing in Byron Bay, working outdoor construction, or golfing in the afternoon sun, high exposure to reflected UV light from water, sand, and concrete drastically increases your risk.
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Wind, Dust, and Dry Climates: The Australian climate can be harsh. Constant exposure to hot winds, dry air, dust, and sand irritates the surface of the eye, triggering the body to grow this protective, fleshy layer of tissue.
Recognising Pterygium Symptoms
In its early stages, a pterygium might look like a small yellow spot or a faint pink smudge. However, as the pterygium eye condition advances, it can cause persistent discomfort.
Common pterygium symptoms include:
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A visible pinkish, fleshy growth on the eye (usually on the side closer to the nose).
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Redness and chronic irritation.
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A persistent burning, gritty, or itchy sensation—as if sand is stuck in your eye.
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Dryness or, conversely, frequent watering due to irritation.
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Blurred or distorted vision if the growth advances far enough to warp or cover the cornea.
Modern Pterygium Treatment Options
If you suspect you have this growth, the right pterygium treatment depends entirely on its size, how fast it is growing, and how much it is bothering you. According to clinical guidelines from Australian eye care experts like Marsden Eye Specialists, treatments generally fall into two categories:
1. Conservative (Non-Surgical) Management
Smaller pterygiums often do not require any surgical intervention. If the growth is small and stable, any associated inflammation, dryness, or redness can be managed topically with:
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Lubricating eye drops (artificial tears) to relieve dryness and grit.
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Anti-inflammatory drops to calm down periods of acute redness and swelling.
2. Surgical Removal
For larger pterygiums that actively threaten your sight, cause severe physical discomfort, or present a major cosmetic concern, surgery is recommended.
This is performed as a day procedure. The most common and effective modern surgical technique involves:
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Carefully removing the unhealthy pterygium tissue from the surface of the eye.
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Taking a piece of healthy conjunctiva tissue from another part of the eye (or occasionally using donor tissue) and grafting it over the area where the pterygium was removed.
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Post-surgery, a regimen of anti-inflammatory and antibiotic eye drops is prescribed to support the healing process and ensure the eye recovers smoothly.
How to Protect Your Eyes and Prevent Regrowth
Just because a pterygium is surgically removed doesn’t mean it can’t come back. In fact, regrowth is a common challenge if the eyes aren't properly shielded afterward. To protect your eyes from initial growths or to stop a recurrence after surgery, try these key strategies:
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Wear Sunglasses: Invest in high-quality sunglasses that offer 100% UV protection. Wrap-around styles are best because they block peripheral UV rays and wind.
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Wear a Hat: A broad-brimmed hat cuts down the amount of UV radiation reaching your eyes by up to 50%.
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Shield Against the Elements: Protect your eyes from dry, dusty, or windy environments using protective eyewear or safety glasses if you work outdoors.
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Keep Eyes Hydrated: Use lubricating eye drops frequently to keep the ocular surface moist and reduce chronic friction and irritation.
Frequently Asked Questions (FAQs)
1. Is a pterygium cancerous?
No, a pterygium is a completely benign (non-cancerous) growth. While it can grow large enough to cause vision problems and discomfort, it does not spread to other tissues or pose a threat to your systemic health.
2. Can a pterygium grow back after it has been surgically removed?
Yes, it can. Just because a pterygium was removed once doesn't mean it can't grow back again. However, modern surgical techniques—such as using a healthy tissue graft over the site—significantly lower the risk of recurrence. Consistent UV protection after surgery is crucial to prevent it from returning.
3. What is the difference between a pinguecula and a pterygium?
Both are caused by UV radiation, wind, and dust. A pinguecula is a yellowish patch or bump on the white of the eye that does not grow over the cornea. A pterygium is a fleshy, vascular growth that actively extends onto the clear cornea, potentially impacting your vision.
4. How long does it take to recover from pterygium surgery?
Because it is handled as a day procedure, you can head home the same day. The eye can feel quite gritty and red for the first few days to a couple of weeks. Most people can return to regular light activities within a week, provided they use their prescribed anti-inflammatory and antibiotic drops and wear eye protection.
5. Can eye drops cure a pterygium completely?
No, eye drops cannot dissolve or reverse a pterygium growth. Over-the-counter lubricating drops and prescription anti-inflammatory drops are strictly used to manage symptoms like redness, dryness, and inflammation. The only way to physically remove a pterygium is through surgery.
