Patients received topical cyclosporin A (0.05%) twice daily for three months postoperatively.

Patients received a single intraoperative application of mitomycin C (0.02%) for two minutes during surgery

The surgical procedure involved excision of the pterygium, including the fibrovascular head and associated conjunctival tissue, followed by bare sclera closure using an autologous conjunctival graft harvested from the superior bulbar conjunctiva. The graft was secured in place using either fibrin glue or 8-0 absorbable sutures. In Group B, 0.02% mitomycin C (MMC) was applied to the bare sclera for two minutes using a soaked sponge, followed by thorough irrigation with balanced salt solution.

the recurrence rate of pterygium, defined as fibrovascular regrowth over the cornea of at least 1 mm

OSDI (from 0 to 100 points) where patients rate their responses on a 0 to 4 scale with 0 corresponding to "none of the time" and 4 corresponding to "all of the time" a final score is calculated which ranges from 0 to 100 with scores and based on their OSDI scores, patients can be categorized as having a normal ocular surface (0-12 points) or as having mild (13-22 points), moderate (23-32 points), or severe (33-100 points) ocular surface disease.