Author(s): Shayana Bhumbla1, Kirti Jain2, K. P. S. Malik3
Surgically-Induced Astigmatism (SIA) is one of the commonest causes of poor postoperative vision even after uneventful cataract surgery. Recent advances have led to a newer concept of “refractive cataract surgery.”
The aim of the study is to study the comparison of postop SIA in Manual Small Incision Cataract Surgery (MSICS) with straight versus frown incision.
MATERIALS AND METHODS
50 patients of cataract were divided into 2 groups (25 each) - group A underwent MSICS with 6 mm straight incision, group B underwent MSICS with 6 mm frown incision. BCVA, keratometry readings were recorded with auto kerato-refractometer preop, at 1 week, 1 month, 3 months and SIA was calculated with SIA calculator version 2.1, a free software program.
Mean SIA in group A and B were - 1.14D versus 0.92D at 1 week; 1.26D versus 0.97D at 1 month; 1.29D versus 0.95D at 3 months. The difference was statistically significant at each follow up visit (p<0.05).
Frown incision gives lesser SIA than straight incision in MSICS.