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Article Type

Original Study

Abstract

Objective The objective of this study was to compare the effect of cataract extraction by torsional and longitudinal phacoemulsification on the integrity of the corneal endothelium. Background Endothelial cell loss remains a well-known, undesirable side effect of cataract surgery. Torsional phaco has a lower mean needle time, less chatter, and improved followability compared with longitudinal phaco. Patients and methods This is a prospective randomized study for comparative analysis of corneal endothelial modifications (central cell density and cell loss) following torsional versus longitudinal phaco. A total of 50 eyes included had nuclear cataract grade 3. Divide-and-conquer technique was used for surgeries using Infiniti, Ozil Technology phacomachine. Cases were distributed randomly into two groups: group I included 25 eyes for which torsional phaco surgery was performed, and group II included 25 eyes for which longitudinal phaco surgery was performed. Results In group I, the P value that expresses the change between preoperative and postoperative endothelial counts was 0.001, which is statistically significant (P < 0.05), and in group II the P value that expresses the change between preoperative and postoperative endothelial counts was also 0.001, which is statistically significant (P < 0.05). On comparing two groups regarding the percentage of endothelial loss, the P value was 0.159, which shows no statistically significant difference (P > 0.05) between the two groups. Conclusion There was no significant difference on comparing the two types of phacoemulsification, as regards the postoperative corneal endothelial cell loss and best-corrected visual acuity.

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