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eISSN: 1643-3750

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

Lian-Qun Wu, Xu Chen, Xiao-Ling An, Yan-Wen Zhou, Sen Bi

(Department of Ophthalmology, Eye, Ear, Nose and Throat (Eye and ENT) Hospital of Fudan University, Shanghai, China (mainland))

Med Sci Monit 2019; 25:10205-10211

DOI: 10.12659/MSM.919043


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.

This paper has been published under Creative Common Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) allowing to download articles and share them with others as long as they credit the authors and the publisher, but without permission to change them in any way or use them commercially.
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