Astigmatism in Pterygium Pre and Post Operative

Purpose: The study aims in comparing pre and post-op astigmatism in pterygium cases following excision and autografting by sutures. Methods: It is a prospective study conducted on 100 patients. Results: Pterygium leads to a significant high corneal astigmatism, which hampers vision of the patient. As the size of pterygium encroaching on cornea increases, the amount of induced astigmatism increases. The type of pterygium excision surgery plays a major role in modifying the induced astigmatism in patients with pterygium. Excision of pterygium leads to statistically significant reduction in astigmatism, which improves vision significantly.