Pterygium Eye Surgery

Pterygium eye surgery — what it is and who it is for

A pterygium is a non-cancerous growth that usually appears on the white of the eye, near the inner corner, and grows toward the cornea. It develops mainly because of prolonged exposure to UV radiation, wind and environmental irritants such as dust, and is therefore more common in people who spend long periods outdoors in hot, dry regions. Surgery is appropriate for those who experience significant discomfort, reduced vision from corneal involvement, or a cosmetic concern.

Symptoms and complications

Symptoms include dryness, redness, tearing and a foreign-body sensation. In more advanced cases the pterygium can distort the cornea, causing astigmatism and reduced vision. Left untreated, it may continue to spread across the cornea and eventually require surgery.

How the eye is prepared and how the surgery is done

Before surgery the eye is examined thoroughly to assess the pterygium and confirm suitability. Contact-lens wearers are usually asked to stop wearing lenses for a few days beforehand. On the day, anesthetic drops and a local anesthetic numb the eye. The surgeon removes the pterygium tissue while preserving the surrounding healthy structures, then places a conjunctival autograft over the bare area, secured with tissue glue. In some cases mitomycin-C is used to reduce the risk of regrowth. A protective dressing is placed for the first day.

Success rates and risks

Pterygium surgery has high success rates, particularly with conjunctival autograft, which substantially lowers recurrence. As with any procedure there are risks — most importantly recurrence, particularly in those with continued UV or environmental exposure. Less common effects include irritation, inflammation and, rarely, mild corneal distortion.

Recovery

Recovery typically spans a few weeks. Mild discomfort, redness and tearing are normal at first, and vision may be slightly blurred. Protecting the eye from sun, avoiding rubbing, and staying away from dust and strenuous activity all support healing. Steroid and lubricating drops are used to reduce inflammation and prevent dryness, with follow-up visits to ensure smooth recovery.