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31 December 2019 : Clinical Research

A Comparison of the Cystotome-Assisted Prechop and Phaco-Chop Phacoemulsification Nucleotomy Techniques

Lian-Qun Wu1DE, Xu Chen2CF, Xiao-Ling An3AB*, Yan-Wen Zhou4AD, Sen Bi3BC

DOI: 10.12659/MSM.919043

Med Sci Monit 2019; 25:10205-10211

Abstract

BACKGROUND: The aim of this study was to compare the intra-operative parameters and post-operative outcomes of cataract surgery performed using the cystotome-assisted prechop (CAP) and phaco-chop techniques.

MATERIAL AND METHODS: Fifty-two eyes with age-related cataract in the CAP group, and 63 eyes in the phaco-chop group were enrolled for analysis in this study, and the surgical outcomes were reported 1 day and/or 1 week, and 1 month post-operatively.

RESULTS: The CAP technique was associated with statistically significantly lower cumulative dissipated energy compared with the phaco-chop technique (P<0.001). The mean endothelial cell loss in the CAP group was statistically significantly lower than that of the phaco-chop group 1 week (5.6±5.9% versus 8.8±8.7%, P=0.020) and 1 month post-operatively (6.3±6.8% versus 9.8±9.9%, P=0.026). The change in the central corneal thickness between the 2 groups was significantly different at 1 day post-operatively (3.3±3.1% versus 4.9±4.6%, P=0.036). The change in the 8.0 mm central corneal volume between the 2 groups was significantly different at 1 day and 1 week post-operatively (6.5±6.1% versus 10.9±7.9%, P=0.001; 3.2±4.7% versus 5.4±5.7%, P=0.029, respectively).

CONCLUSIONS: The CAP technique showed lower ultrasound energy consumption and less endothelial damage and corneal edema than the phaco-chop technique. It might therefore prove a cost-effective prechop method for cataract surgery.

Keywords: Cataract, endothelial cells, Phacoemulsification

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750