Abstract

“To compare the post operative astigmatism and visual out come in Manual small incision cataract surgery and Phacoemulsification”. Methodology: This comparative study of post operative astigmatism between Manual SICS and phacoemulsification was done in Department of Ophthalmology Kurnool Medical College, Kurnool. 50cases were Manual SICS and 50 cases were Clear corneal phacoemulsification. Results: The mean age group of patients in SICS and phaco was 62.16 and 60.7years respectively. In 50 cases, Manual SICS was done with superior frown shaped 6.5mm incision 2mm from the limbus. In 50 cases of Phacoemulsification was done with Clear corneal 3mm biplanar incision at 11o clock. Postoperative astigmatism was studied with keratometer and automated- refractometer at the end of 6weeks. Surgically induced astigmatism was calculated by vector method of Jaffe. The induced astigmatism at the end of 6 weeks was ATR in 24 cases, WTR in 10 cases and oblique astigmatism in 16 cases in Manual SICS group. The induced astigmatism at the end of 6 weeks was ATR in 22 cases WTR in 17 cases and oblique astigmatism in 10 cases in Clear corneal phacoemulsification group. There was a net tendency towards against the rule astigmatism in both the groups at the end of 6 weeks. Mean induced astigmatism at the end of 6 weeks was 0.91 in Manual SICS group and 0.49 in Phacoemulsification group (statistically significant difference). Uncorrected VA and Best corrected VA at the end of 6 weeks were much better in Clear corneal phaco group (p value significant). Uncorrected near VA at the end of 6 weeks were almost similar in both the groups (p value not significant). Conclusion: Our study concluded that there is a statistically significant (p<0.00001) difference in the magnitude and severity of surgically induced astigmatism at the end of 6 weeks between Manual SICS and Clear corneal phacoemulsification group.

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