Understanding Pterygium: Causes and Symptoms
What Is a Pterygium?
A pterygium is an overgrowth of conjunctival tissue that often looks like a small wing on the eye. Because it is strongly linked to ultraviolet light exposure, it is sometimes called surfer’s eye.
The growth starts on the conjunctiva and can spread onto the cornea, forming a triangular shape that is white or pink in color.
If the tissue reaches the central cornea, it can alter the eye’s curvature, cause astigmatism, and blur vision.
Regular eye exams allow your doctor to track any change in size or symptoms so problems can be treated before vision is affected.
How Pterygium Affects the Eye
Even though the growth is benign, its presence on the delicate surface of the eye can create several problems that deserve attention.
When the pterygium presses on the cornea, it can create irregular astigmatism that leads to distorted or blurred sight.
Redness, itching, and a gritty feeling are common because the tissue disrupts the eye’s natural tear film.
In advanced cases the tissue can cover the pupil, block light from entering the eye, and lower visual acuity.
Recognizing Symptoms and Contributing Factors
Symptoms differ from person to person, and several environmental and personal factors influence who develops the condition.
The growth may be small and painless or large and bothersome.
- Redness and visible blood vessels near the growth
- Sensation of sand, grit, or a foreign body in the eye
- Dryness, itching, or burning
- Off-white or pink tissue on the eye’s surface
- Blurred or distorted vision as the cornea changes shape
Certain settings and personal traits raise the likelihood of developing a pterygium.
- Long-term ultraviolet light exposure without eye protection
- Wind, dust, and dry climates that irritate the ocular surface
- Family history or genetic predisposition
- Outdoor and industrial jobs with dust, sand, or chemicals
- Age-related cumulative sun exposure and dry eye disease
Treatment Options
Management ranges from simple protective steps to outpatient surgery, depending on size, symptoms, and visual impact.
When symptoms are mild, non-surgical care can control irritation and slow growth.
- Lubricating drops or artificial tears to relieve dryness
- Short courses of steroid drops for inflammation
- Sunglasses and wide-brimmed hats for UV protection
- Avoiding dusty, windy, or very dry conditions
Surgery is considered when the growth threatens vision or causes persistent discomfort.
- Significant visual impairment from corneal distortion
- Ongoing irritation that does not improve with drops
- Irregular astigmatism created by the growth
- Cosmetic concerns that affect confidence
The procedure is performed under local anesthesia and usually takes place in an outpatient setting.
- Pre-operative assessment of eye health and medical history
- Removal of the pterygium tissue from the cornea
- Placement of a conjunctival or amniotic membrane graft
- Use of fine sutures or tissue adhesive to secure the graft
- Post-operative drops, protective eyewear, and follow-up visits
Surgical Decision and Alternatives
Balancing the advantages and drawbacks of surgery helps you choose the path that best fits your lifestyle and vision goals.
Understanding both sides of the decision supports informed consent.
- Pros: Relief from irritation, improved vision, better appearance, and reduced chance of further growth
- Cons: Small risks of infection, scarring, recurrence, temporary discomfort, and possible change in refractive error
For mild cases, or when surgery is not preferred, several approaches can help control symptoms and prevent progression.
- Prescription lubricating and anti-inflammatory eye drops
- Consistent use of UV-blocking sunglasses and hats
- Limiting exposure to wind, dust, and dry air
- Good eye hygiene and avoiding excessive rubbing
Modern methods such as conjunctival autograft or amniotic membrane graft aim to restore normal anatomy and reduce recurrence. In some cases an antimetabolite is applied during surgery to further lower the chance of the tissue growing back.
Careful follow-up and self-care support proper healing and long-term success.
- Using prescribed antibiotic and steroid drops
- Avoiding strenuous activity and environments with dust
- Wearing a shield or patch during early healing
- Attending scheduled appointments for your eye to be checked
Long-Term Outlook and Considerations
Most pterygia grow slowly, and many never need surgery. Whether managed conservatively or removed surgically, protecting your eyes from UV light and irritants, using lubricating drops, and having regular eye exams help keep vision clear and comfortable.
Partnering With You for Lifelong Eye Health
Our team is committed to guiding you through every step of pterygium care, from prevention to treatment and follow-up. By working together and focusing on regular eye protection and check-ups, we can help you preserve healthy sight for years to come.
excellent surgeon . very satisfied with cornea transplant.
Greg
Patient at Westwood Ophthalmology for almost 10 years. Dr. Pagan is my ophthalmologist, she is wonderful. I saw Dr. Lee recently for cornea surgery and follow-up. He is competent and caring.
Beth Cruz
They did a very thorough analysis and found I had a scratched cornea. This will be my new go to for optometry.
Paula Clark
Everyone at the office is always professional and friendly. Dr. is very thorough and takes the time to explain information.
Diane McLoughlin
Dr. Bianchi is a wonderful, caring doctor. My son was very sick with a chalazion and Dr. Bianchi went above and beyond to make sure my son recovered fully.
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