Evaluation of Surgically Induced Astigmatism (SIA) at 10’O Clock Limbal Incision 2.8mm After Phacoemulsification

Abstract

Objective: To evaluate surgically induced astigmatism (SIA) at 10^’o clock Limbal incision 2.8mm after phacoemulsification procedure.

Study Design: Experimental study

Place and Duration of Study: This study was conducted at the Khairpur Medical College Teaching Hospital from the duration of July 2018 to December 2018.

Materials and Methods: 100 patients who had astigmatism of less than 1.5D were selected on the basis of convenience sampling technique, and were divided into groups based on eye involvement, with one group having 50 patients in which the incisions site was Superotemporal, and the other 50 had incision site at Superonasal.  The incision was given at 10’o clock 2.8mm with the wound being close with corneal hydration without using sutures. Pre and post-operative K1 and K2 measurements were recorded Data was analyzed using SPSS, with the paired t-test being applied to determine the statistical significance which was kept at ≤0.05.

Results: In a study of 100 people, 64 were male and 36 were female with the mean age of male patients being 52.31 and female being 54.35. No significant difference was observed in the pre and post-operative K1 and K2 value in Superotemporal incision (K1:0.986, K2:0.384). Similarly, no significant difference was seen in the pre and post-operative K1 and K2 value in Superonasal incision (K1:0.352, K2:512).

Conclusion: Limbal Incision can be used after phacoemulsification surgery as it doesn’t enhance SIA post-operatively.