This grayish elevated growth of elastic and connective tissue containing blood vessels invades and grows over the cornea. It may result from irritation to the eye from wind, heat of the sun, dust, or smoke.
If the pterygium progresses to grow over the center of the cornea, sight may be impaired or even lost.
Before this occurs, the pterygium should be removed surgically. At our centre, pterygium is removed by a specialized technique called Conjunctival Autografting, where, the pterygium is excised, and a conjunctival graft, taken from a healthy part of the same eye is used to cover the defect. This technique prevents recurrence of the pterygium, which would normally occur after conventional pterygium removal without grafting.