Noticing a raised, pale or reddish growth on the white of your eye can be unsettling, particularly when it appears to be moving towards the coloured part. Many people assume it is an infection, a burst blood vessel or a sign of something more serious. It may, however, be a common eye-surface condition called a pterygium.
A pterygium is usually a non-cancerous growth of tissue that extends from the conjunctiva, which covers the white of the eye, towards the cornea. It may remain small and cause few problems, or it can gradually become irritated, more noticeable and begin to affect the shape of the cornea.
This straightforward guide will help you understand what a pterygium commonly looks like, who is affected in the UK and when it may be time to discuss treatment with an eye specialist.
The Quick Answer
What Does a Pterygium Look Like?
A pterygium commonly appears as a triangular, wing-shaped area of raised tissue growing from the white of the eye towards the cornea. It most often develops on the side nearest the nose and may look pale, pink or red depending on how inflamed it is.
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What Is a Pterygium?
A pterygium is an overgrowth of conjunctival tissue on the surface of the eye. The conjunctiva is the thin, transparent membrane covering the white part of the eye and lining the inside of the eyelids.
The growth usually begins near the inner corner of the eye and gradually extends towards the cornea, the clear front window through which light enters. Its roughly triangular shape has given rise to the name pterygium, which comes from a word meaning “wing”.
You may also hear it called “surfer’s eye” because long-term exposure to sunlight, wind and reflective environments is associated with its development. You do not, however, need to surf or live in a tropical country to develop one.
The 60-Second Mirror Check
You cannot reliably diagnose an eye condition using a mirror, but you can look for characteristics that suggest a professional examination would be sensible.
Look at the Eye in Good Natural Light
- Is there a raised or thickened area on the white of the eye?
- Does it have a triangular or wing-like shape?
- Does the pointed end appear to extend towards the coloured iris?
- Is it on the side of the eye closest to your nose?
- Does it sometimes become redder after being outdoors?
- Does that eye frequently feel dry, gritty or irritated?
If several of these descriptions match what you can see, the growth could be a pterygium. An optometrist or ophthalmologist will still need to examine it because other eye-surface conditions can sometimes have a similar appearance.
What Symptoms Can a Pterygium Cause?
A small pterygium may cause no symptoms and may only be noticed when looking closely in a mirror or during a routine eye examination.
When symptoms occur, they can include:
- Localised redness on the white of the eye
- A dry, gritty or burning sensation
- The feeling that something is caught in the eye
- Watering or intermittent irritation
- Greater sensitivity to wind, dust or bright sunlight
- A visible change that affects confidence
- Blurred or fluctuating vision
- A changing astigmatism or glasses prescription
Symptoms may come and go. The eye can look relatively calm one day and become much redder after exposure to bright sunlight, dry air, wind, dust, heating or air conditioning.
Is It a Pterygium, Pinguecula or Something Else?
One reason people struggle to identify a pterygium is that several eye conditions can cause redness or a visible mark on the white of the eye.
| Eye-Surface Change | Typical Appearance | Helpful Distinction |
|---|---|---|
| Pterygium | Raised, triangular tissue extending towards or onto the cornea | Can grow across the cornea and alter its shape |
| Pinguecula | Small yellowish or cream-coloured bump on the white of the eye | Does not normally extend across the cornea |
| Conjunctivitis | More widespread redness, sometimes with watering or discharge | Usually causes inflammation rather than a triangular tissue growth |
| Burst Blood Vessel | Bright red, sharply defined patch beneath the conjunctiva | Looks like blood rather than raised fleshy tissue |
Photographs found online cannot replace an examination. If a growth has an unusual shape, changes rapidly, becomes painful or looks different from a typical pterygium, it should be assessed rather than self-diagnosed.
Who Develops Pterygium in the UK?
Pterygium is often associated with hot and sunny countries, but people living in the UK can still develop it. Risk is connected to cumulative exposure over many years, not simply the weather on a particular day.
People who may be more likely to develop a pterygium include:
Outdoor Workers
Farmers, builders, gardeners, delivery workers, landscapers and others who spend long periods outside may accumulate greater exposure to ultraviolet light, wind and dust.
Outdoor Sports Enthusiasts
Runners, cyclists, golfers, sailors, anglers and people involved in water or mountain sports can experience prolonged sun, wind and reflected light.
People Who Have Lived Abroad
Someone may now live in the UK but have spent childhood, working years or extended periods in a warmer, sunnier climate.
People with Long-Term Eye Irritation
Dry, dusty and windy environments can aggravate the surface of the eye and may contribute to repeated inflammation and discomfort.
Increasing age can also make pterygium more noticeable because UV and environmental exposure accumulate over time. Younger adults can still be affected, particularly when they spend significant time outdoors or have previously lived in a high-UV region.
But the UK Is Not Very Sunny. Why Does UV Protection Matter?
Ultraviolet radiation is present even when the weather feels mild or the sky is partly cloudy. It can also reflect from water, pale surfaces and snow.
UV protection will not remove an existing pterygium, but it may help reduce irritation and further exposure. Consider:
- Wearing good-quality sunglasses with reliable UV protection
- Choosing a wrap-around frame that also reduces wind and dust
- Wearing a hat with a brim when outside for extended periods
- Using protective eyewear in dusty working environments
- Seeking advice about suitable lubricating drops for dry eyes
Remember: Sunglasses should provide genuine UV protection. A dark tint alone does not confirm that a lens blocks ultraviolet radiation.
Do You Need Treatment?
Not every pterygium needs to be surgically removed. A small, stable growth that does not affect comfort, appearance or vision may simply be monitored during routine eye examinations.
Use the pathway below as a general guide.
Small, Stable and Comfortable
If the growth is not changing, causing irritation or affecting vision, your eye-care professional may recommend observation, UV protection and routine reviews.
Dry, Gritty or Occasionally Inflamed
Lubricating drops may improve dryness and discomfort. A clinician may occasionally prescribe other drops when inflammation flares, but medicated eye drops should only be used as directed.
Growing, Persistent or Affecting Daily Life
Specialist assessment is sensible if the growth is enlarging, repeatedly inflamed, affecting vision, changing your prescription or causing significant cosmetic concern.
Five Signs It May Be Time to Discuss Removal
- The growth is moving further across the cornea.
- Your vision or glasses prescription is changing.
- Redness and irritation keep returning despite simple measures.
- The eye constantly feels uncomfortable during work or outdoor activities.
- The appearance of the growth is affecting your confidence.
Surgery is not based on size alone. Fadi will consider the growth pattern, symptoms, corneal shape, visual effect and your personal concerns before recommending whether removal is appropriate.
What Happens During Pterygium Surgery?
During pterygium surgery, the abnormal tissue is carefully separated and removed from the surface of the eye. The area may then be covered using a thin section of the patient’s healthy conjunctival tissue, known as a conjunctival autograft.
The graft helps the surface heal and is used to reduce the risk of the pterygium returning. The exact surgical technique will depend on the position, size and characteristics of the growth.
The eye is numbed for the procedure. Some soreness, grittiness, watering and redness are expected during the early recovery period. Prescribed eye drops and follow-up appointments help control inflammation, protect against infection and monitor healing.
Can a Pterygium Return After Surgery?
A pterygium can recur following removal, although modern surgical techniques using a conjunctival autograft are intended to reduce this risk. Recurrence may appear as new tissue growing into the treated area and can sometimes be more inflamed than the original growth.
Your individual risk can be influenced by the characteristics of the pterygium, healing response, surgical technique and continuing exposure to UV light or environmental irritation. Following postoperative instructions and protecting the eyes outdoors remain important after treatment.
When Should You Seek More Urgent Advice?
A typical pterygium usually develops gradually. Seek prompt professional advice if you experience:
- A sudden reduction or loss of vision
- Severe or rapidly increasing eye pain
- Marked light sensitivity
- An eye injury or chemical exposure
- Significant discharge or swelling
- A rapidly changing or unusually coloured growth
- New flashing lights, floaters or a shadow across your vision
These symptoms are not typical of a simple, stable pterygium and may indicate another condition requiring quicker assessment.
What Will Fadi Check During Your Consultation?
Dr Fadi Kherdaji will examine the surface of the eye and assess how far the tissue extends towards or onto the cornea. He may also review your vision, prescription and corneal shape to determine whether the growth is producing astigmatism or other optical changes.
Your consultation should help answer four practical questions:
- Is the growth a pterygium or another eye-surface condition?
- Is it stable or continuing to enlarge?
- Is it affecting comfort, corneal shape or vision?
- Would monitoring, symptom relief or surgical removal be most appropriate?
You can learn more about pterygium eye treatment in Cheltenham, including the procedure, recovery and current treatment price.
Common Questions About Pterygium
Is a pterygium a form of eye cancer?
A typical pterygium is a benign growth rather than cancer. However, visible eye-surface changes should be professionally examined, particularly if their appearance is unusual or changing rapidly.
Will a pterygium disappear with eye drops?
Eye drops may reduce dryness, redness and irritation, but they do not normally remove the tissue itself. A pterygium can remain stable for a long time or gradually enlarge.
Can a pterygium affect my glasses prescription?
Yes. If the growth changes the curvature of the cornea, it can create or alter astigmatism. This may result in blurred vision or a changing prescription.
Can contact lenses irritate a pterygium?
A raised or inflamed pterygium can sometimes make contact-lens wear less comfortable. An eye-care professional can examine the surface and advise whether your lens type, fit or wearing schedule needs to change.
Can I prevent a pterygium?
It is not possible to guarantee prevention, but limiting UV and environmental exposure may help. Good-quality sunglasses, wrap-around eye protection and a brimmed hat can protect the surface of the eyes from sunlight, wind and dust.
Noticed a Growth on the Surface of Your Eye?
A specialist assessment can establish whether the tissue is a pterygium, whether it is affecting your cornea and whether monitoring or treatment may be appropriate.
Arrange a ConsultationThis article provides general information and cannot diagnose a visible eye growth. Seek professional assessment if you notice a new or changing mark on your eye. Treatment suitability, recovery and outcomes vary between patients, and all procedures have potential risks and limitations.