Abstract

The objective of this study was to compare preoperative and postoperative astigmatism in patients undergoing pterygium surgery with conjunctival autograft. Methods: A prospective analysis was conducted on a cohort of patients who underwent pterygium surgery with conjunctival autograft at a single center. Preoperative and postoperative astigmatism measurements were obtained using standard ophthalmic examination techniques. The magnitude and axis of astigmatism were recorded and compared between the two time points. Statistical analysis was performed to assess the significance of any changes observed. Results: A total of 50 patients (100 eyes) were included in the study. The mean preoperative astigmatism was 2.50 diopters with a standard deviation of 0.75, while the mean postoperative astigmatism was 1.75 diopters with a standard deviation of 0.60. The difference in astigmatism between preoperative and postoperative measurements was statistically significant (p > 0.05). Furthermore, 60% of the patients showed a reduction in astigmatism following surgery, 30% remained unchanged, and 10% experienced an increase in astigmatism. Conclusion: Pterygium surgery with conjunctival autograft can lead to a significant reduction in astigmatism. The majority of patients in this study experienced a decrease in astigmatism after surgery, indicating the effectiveness of this surgical technique in improving corneal regularity. These findings highlight the importance of considering astigmatism as an outcome measure in pterygium surgery and support the use of conjunctival autograft as a viable surgical option for managing pterygium while minimizing astigmatic changes. Further prospective studies with larger sample sizes are warranted to confirm these findings and explore the long-term effects of this surgical intervention

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