Clinical study to evaluate the influence of incision site (superior vs superotemporal) on postoperative astigmatism in manual small incision cataract surgery.

ABSTRACT

Introduction: Small incision cataract surgeries may be performed using various surgical incisions, namely, superior, supero-temporal and temporal. Each method has its own advantages and disadvantages. Supero-temporal incision is considered the best as it produces least induced astigmatism. The purpose of this study was to compare the postoperative induced astigmatism in superior and superotemporal incision group in small incision cataract surgery. Material &Method- This study was conducted on cataract surgery patients admitted in M.R.A Medical College, Ambedkarnagar. Fifty patients were selected for study, out of which 30 received superior and 20 received superotemporal incision. Preoperative keratometric and post operative 6 weeks keratometric readings were analysed. Results-Superior incision is better for with the rule astigmatism and worst for against the rule astigmatism, while superotemporal incision is equally good for both with the rule and against the rule astigmatism. Conclusion-Superotemporal incision is better than superior as it produces least astigmatism with good visual acquity.