Comparision Between Preoperative and Postoperative Astigmatism Following Various Types of Incision in Manual Small Incision Cataract Surgery Patients.

Purpose : To assess how superior,temporal and superotemporal incision types affect preoperative astigmatism and to evaluate postoperative astigmatism in manual Small incision cataract surgery . Methods:A prospective study of 80 eyes of 80 patients with cataract having preoperative astigmatism of 0.75 to 2.5 D.All the patients operated were having different types and grades of cataract .The best corrected visual acuity (BCVA),intraocular pressure,K1,K2,IOL power were calculated before and after surgery.. Steep meridian incision technique was used in cataract surgery. Results : Mean preoperative astigmatism was 1.5D, reducing to 0.65 D postoperatively. In our study 62% patients had residual astigmatism of 0.5D or less, 20% patients had 0.51D to 0.75D, 17% patients had 0.76D to1.0D. Astigmatism in superotemporal and temporal incision was more stable in compare to superior incision post operatively. Conclusion: Incision at steeper meridian is safe and effective to correct mild to moderate preoperative astigmatism. A simple modification in incision placement offers a better surgical outcome.