Pterygium of the conjunctive refers to a wing-shaped thickening in the bulbar conjunctiva. The process begins near one corner of the eye, most commonly the inner canthus. The progressive head is typically fleshy and can infiltrate the cornea and block vision. Surgical excision is curative, although recurrence may occur after surgical removal (summary by Hecht and Shoptaugh, 1990). [from
OMIM]