Pterygium is a triangular-shaped growth of connective and vascular tissue that extends from the conjunctiva (the white of the eye) toward the cornea (the clear part). Chronic exposure to sunlight, wind, and dust are contributing factors to its development. In addition to its unpleasant appearance, it can cause significant astigmatism by pulling on the cornea or, in severe cases, impair vision by extending into the center of the cornea.
Before procedure
The use of moisturizing or anti-inflammatory eye drops may be recommended prior to surgery. If the pterygium is large, a conjunctival graft may also be planned during the surgery to reduce the risk of recurrence. Fasting is required on the day of the procedure.
After procedure
Long-term (several months) use of steroid eye drops is crucial for suppressing inflammation and preventing recurrence. Protecting the eyes from UV radiation with appropriate sunglasses is mandatory, even on cloudy days. Regular use of preservative-free artificial tear drops is recommended.
Complication and alarm signs
Pterygium recurrence (re-growth of the lesion) is the most common complication, especially in young people and those exposed to sunlight. Surgical site infection and the formation of corneal scarring may reduce vision. Residual or induced astigmatism are also factors contributing to the failure of vision correction after surgery.