Pterygium
What is Pterygium?
This growth starts as a small bump on the eye’s surface and can grow over time if not addressed. Understanding what it looks like and who might get it can help you spot it early and seek care.
Pterygium usually looks like a pink, wedge-shaped tissue that starts on the inner corner of the eye near the nose. It grows from the conjunctiva, the thin layer covering the white of the eye, and extends onto the cornea, the clear part in front. In some cases, it appears on the outer corner, but it’s almost always raised and may have visible blood vessels.
People who live in sunny, dry climates or work outdoors are more likely to develop pterygium. It affects adults more often, especially those over 40, and is more common in men who spend time in dusty or windy environments. If you enjoy activities like surfing or farming, you might be at higher risk due to constant exposure to the elements.
Causes of Pterygium
The main cause is long-term exposure to certain environmental factors that irritate the eyes. Knowing these can help you take steps to protect your eyes every day.
Sunlight plays a big role in causing pterygium, since UV rays can damage the eye’s surface over time. This is why it’s more common in places near the equator where the sun is strong. Wearing protection outdoors can make a big difference in preventing this growth.
Irritants like dust, sand, smoke, and wind can lead to chronic eye irritation, which may trigger pterygium. People in hot, dry, or windy areas, or those exposed to these elements at work or during hobbies, are especially prone. Simple habits like using artificial tears can help soothe your eyes in these situations.
Age and genetics may also play a part. Pterygium tends to run in families and increases with age. International studies show that pterygium affects about 3–10% of adults in sunny regions, with the prevalence rising with age. Men and those who spend more time outside are especially likely to be affected*.
Symptoms of Pterygium
Symptoms can be mild at first but may worsen if the growth gets larger. Recognizing them early allows for better comfort and care.
You might notice redness, itching, or a burning feeling in the eye. Some people feel like there’s something stuck in their eye, even though nothing is there. These symptoms often come and go, especially in dry or sunny weather.
If the pterygium grows over the cornea, it can blur your vision or cause astigmatism, making things look distorted. In rare cases, it may block part of your sight if it covers the pupil. Most people don’t have severe vision issues, and treatments can help restore clarity.
Inflammation can make the eye bloodshot and more uncomfortable during flare-ups. Thick growths might make wearing contact lenses hard due to irritation. If you experience ongoing pain or changes in vision, it’s a good idea to get checked promptly.
Diagnosis of Pterygium
Diagnosing pterygium is straightforward and usually done during a routine eye exam. This helps ensure it’s not something else and plans the best care.
An eye care professional can spot pterygium by looking closely at your eye with a special light called a slit lamp. This tool magnifies the growth to check its size and shape. No invasive tests are needed for most diagnoses.
Sometimes, pterygium can look like other eye issues, such as pinguecula or even early cancer, so photos or a small sample might be taken if needed. Regular check-ups track any changes over time. Early detection means easier management and peace of mind.
Treatment Options for Pterygium
Treatments focus on easing symptoms and preventing growth, with options ranging from simple remedies to surgery if necessary. Most people find relief without major procedures.
For mild cases, lubricating eye drops like Refresh or Systane can keep your eyes moist and reduce irritation. Steroid drops may be used short-term to calm redness and swelling. These help manage discomfort without removing the growth.
Surgery is an option if the pterygium affects vision, causes ongoing pain, or grows too large. The procedure removes the tissue and may use a conjunctival graft to reduce the chance it returns. Recurrence after surgery is generally low (under 10%), especially when graft techniques are used. Recovery is usually quick, and most people see well soon after.
After any treatment, protect your eyes from sun and dust to avoid recurrence. Follow-up visits ensure everything heals properly. With care, many people enjoy long-term relief and clear vision.
Prevention Tips for Pterygium
Preventing pterygium involves protecting your eyes from irritants and UV rays. These steps are easy to follow and can make a big difference.
Wear sunglasses with UV protection and a wide-brimmed hat when outdoors. This blocks harmful rays and reduces exposure. Avoid rubbing your eyes in dusty conditions to prevent irritation.
Use artificial tears regularly if you work in dry or windy environments. Limit time in harsh sunlight, especially during peak hours. These habits not only help prevent pterygium but also keep your eyes healthy in general.
FAQs About Pterygium
Here are answers to some common questions patients ask about pterygium.
No, pterygium does not usually disappear without treatment. It may stay the same size or grow slowly over time. Managing symptoms with drops can help, but surgery might be needed if it affects your vision.
Pterygium is benign and not cancerous, so it’s not dangerous in most cases. However, if it grows large, it can impact vision or cause discomfort. Regular eye exams ensure it stays under control.
Try using over-the-counter artificial tears to moisten your eyes and reduce itching. Avoid direct sun and wind, and rest your eyes if irritated. If symptoms persist, see an eye care professional for personalized advice.
Surgery often works well, but there’s a small chance of recurrence. Techniques like conjunctival grafting lower this risk to under 10%. Following prevention tips after surgery helps keep your eyes clear long-term.
Yes, pterygium can occur in one or both eyes, and some people develop growths on both the inner and outer corners, though the inner corner near the nose is most common.
A pinguecula is a small yellowish bump that stays on the white of the eye, while a pterygium grows onto the clear cornea; a pinguecula can sometimes develop into a pterygium over time.
Yes, as the tissue pulls on or grows over the cornea, it can change its shape and create astigmatism, which can blur or distort vision.
No, pterygium is not an infection and cannot spread from person to person; it’s related to long-term exposure to sun, wind, and dryness.
Many people can still wear contacts, but larger or inflamed pterygia may cause irritation; switching lens types, improving lubrication, or using glasses during flare-ups can help.
Yes, wraparound sunglasses with full UV protection and a brimmed hat reduce UV exposure and wind, which can slow growth and reduce irritation.
Modern techniques using conjunctival grafts and careful aftercare lower the chance of recurrence; protecting eyes from UV and dryness after surgery is especially important.
Lubricating drops ease dryness, burning, and irritation but do not shrink the tissue; they help keep the eyes comfortable and may reduce flare-ups.
Surgery is considered if the growth threatens vision, keeps growing toward the pupil, causes significant irritation that doesn’t improve, or makes contact lens wear difficult.
While more common with age, younger people who spend lots of time outdoors without eye protection, such as athletes, lifeguards, or outdoor workers, can also develop pterygium.
Taking Care of Your Eyes
Protecting your eyes from the sun and irritants is key to managing or preventing pterygium. With simple habits and regular check-ups, you can maintain comfortable vision and eye health. If you notice any changes, reach out for an eye exam to stay on top of things.