Surgery is generally performed using local anaesthesia. Modern surgical treatment involves excision of the pterygium, and using a “graft” of adjacent conjunctiva with stem cells from the same eye to cover the bare area left by the excision on the white of the eye. This has the advantage of preventing recurrence. Following surgery, the the patient might experience watering ,redness and foreign body sensation for a few days .This is due to the surgery having been on the surface of the eye rather than within it (cataract surgery, by contrast, being fairly comfortable post operatively) and the graft is secured by sutures that are removed in a few days or are absorbable.