English

Abstract

PURPOSE: To evaluate and compare the surgical induced astigmatism in Phacoemulsification done by 2.80 and 5.30 mm clear corneal incision and SICS done through superiorly placed 6.00mm scleral incision. METHODS: Group - 1:2.80 mm clear corneal, sutureless, temporally placed incision with phacoemulsification technique (PE); Group-2:5.30 mm clear corneal, sutureless, temporally placed incision with phacoemulsification technique (PE); Group-3: 6 mm, straight scleral, sutureless, superiorly placed incision with manual small Incision cataract surgery (MSICS). RESULTS: Keratometric Cylinder (KC): The KC at 1 day, 1 week, 1 month, 3 month, was 1.26±0.54, 1.03±0.44, 0.99±0.36, 0.92±0.36 in group - 1; 1.90±0.41, 1.53±0.29, 1.37±0.28, 1.37±0.28 in group - 2 and 1.62±0.56, 1.43±0.68, 1.23±0.56, 1.21±0.49 in group 3 respectively.; Surgical Induced Astigmatism (SIA): The SIA at 1 week, 1 month, 3 month, was 0.64 ± 0.32, 0.55 ± 0.31, 0.48 ± 0.32 in group - 1; 1.00 ± 0.40, 0.84 ± 0.39, 0.84 ± 0.39 in group - 2 and 1.49 ± 0.77, 1.39 ± 0.46, 1.37 ± 0.40 in group - 3 respectively. After analysis, statistically significant (P<0.05) difference noted in keratometric cylinder & SIA between Group - 1 v/s Group - 2, Group - 1 v/s Group - 3 and Group - 2 v/s Group - 3 from day 1 & subsequent follow up. The preoperative parameters i.e. UCVA, mean keratometry & keratometric cylinder between the three groups were comparable. There was no statistically significant difference found between three groups preoperatively. CONCLUSION: Phacoemulsification 2.80 mm clear corneal temporal incision cataract surgery induces least SIA postoperatively, 5.30 mm incision induces 2nd least SIA & 6.00 mm straight superior scleral manual SICS induces the maximum SIA among the 3 groups.