somaiya.edu
Cataract poses to be a significant public health concern as it is the leading cause of preventable blindness worldwide..Manual small incision cataract surgery is the most common surgery performed for cataract extraction and the location, size, and shape of incisions in MSICS influence postoperative (surgically induced) astigmatism..In against the rule astigmatism cataract patients ,temporal incision being better than superior due to less surgically induced astigmatism.
Materials and Methods: 162 Patients with pre operative against the rule astigmatism posted and underwent manual small incision cataract surgery cataract in the department of ophthalmology at K.J .Somaiya medical college and research centre ,Mumbai after randomly dividing into half for superior and other half for temporal group .The study was carried from 2022 June _ 2024 June with follow up duration of 1 month for each eye operated..Vision ,anterior segment and posterior segment evaluation,keratometric values,autorefractometric values ,intraocular pressure were recorded.
Results: Out 56 eyes who underwent superior manual small incision cataract surgery 45 (80 % )eyes showed increase in against the rule astigmatism on 30 th post operative day ,6 eyes (10.7 %) it decreased while remained same in 5 eyes (9%).Out 56 eyes who underwent temporal manual small incision cataract surgery 23 (41 % )eyes showed increase in against the rule astigmatism on 30 th post operative day ,25 eyes (44.6 %) it decreased while remained same in 8 eyes (14 %).
Conclusion: Temporal incision in manual incision cataract surgery produces lesser surgically induced astigmatism as compared to superior incision group .The pre existing against the rule astigmatism present gets reduced through temporal incision while the same worsened with superior incision.
