Isha Chaudhari
University College of Medical Sciences, India
Title: Supracapsular phacoemulsification versus stop and chop phacoemulsification: Safety and efficacy
Biography
Biography: Isha Chaudhari
Abstract
Statement of the problem: There are various descriptive studies on different techniques of supracapsular phacoemulsification that claim to have lesser risk of complications like posterior capsular rent and nucleus drop and increased risk of corneal endothelial damage compared to conventional in the bag techniques of phacoemulsification. But to the best of our knowledge, there is only one comparative study between supracapsular phacoemulsification and in the bag phacoemulsification. Also, the studies do not describe the efficacy, safety and functionality of supracapsular phacoemulsification in different grades of nucleus sclerosis.
Purpose: To compare the safety and efficacy of Maloney’s Supracapsular technique with Stop and Chop phacoemulsification
in different nucleus sclerosis grades.
Methodology: A prospective randomized interventional study comprising of 153 patients undergoing surgery by two
techniques, evaluated for intraoperative phacoemulsification parameters, complications and endothelial cell loss and change in morphology (coefficient of variation and hexagonality).
Findings: Operative time, ultrasound time (41.28 ±19.20s and 88.41 ± 43.24s), cumulative dissipated energy (10.18±5.03 and 24.77±13.09), effective phaco-time, fluid volume, aspiration time and postoperative corneal thickness (on day-1: 575.72 ± 57.7 μ and 605.88 ± 57.49 μ) were significantly higher in stop and chop group. Endothelial cell loss (on day-1: 7.21% and 7.49%) was significant but comparable in two groups. No difference in complication rate. No significant correlation with nucleus hardness was seen with the corneal parameters where as an increase in each phacoemulsification parameter was seen with increase in nuclear hardness, with grade 3 using maximum time and energy.
Conclusion & Significance: Supracapsular technique uses less phaco-energy and time and both techniques are comparable with respect to final visual outcome and complications, including corneal edema and endothelial cell loss.