Evaluation of techniques of single continuous suturing in penetrating keratoplasty

Abstract

Aim - To evaluate the three techniques of single continuous suturing - namely, torque, antitorque, and no torque in penetrating keratoplasty. Methods - 53 eyes of 53 patients underwent penetrating keratoplasty using torque (17 patients), antitorque (18 patients), and no torque (18 patients) suturing techniques in this prospective study. Patients were followed up at 4 weeks, 3 months, and 6 months. Keratometric, videokeratographic, refractive astigmatism, and best corrected visual acuity were determined in all the three groups at each follow up visit. Post-keratoplasty suture adjustment was done at 4 weeks, if the astigmatism was >3 dioptres. Results - The initial astigmatism in the torque gr..