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Comparison Study between Ultra-Chopper and Divide &Conquer Techniques

Open Journal of Ophthalmology 2022年第2期12卷 201-207页

作者： Wilson Takashi Hida Andre Lins de Medeiros patrick tzelikis Celso Takashi Nakano Antonio Francisco Pimenta Motta Pedro Carricondo Marcelo Colombo Barboza Cesar Vilar Walton Nose Hospital Oftalmológico de Brasília Brasília Brasil Renato Ambrosio Eye Research Center Brasília Brasil

Background: Hard brunescent nuclei are difficult to chop with traditional techniques, because leathery tough strands may connect the posterior surface and span across the fragments, which poses a challenge to completely divide the nuclei. The ultra-chopping technique was designed to mitigate this issue. Purpose: To compare the intraoperative parameters between Ultra-Chopper and Divide & Conquer Techniques. Setting: This study was performed at Hospital Oftalmológico de Brasília, Brasília, DF, Brazil. Patients and Methods: A prospective, randomized and comparative study. Patients with the diagnosis of dense cataract and surgical extraction programmed were divided into two groups: Ultra-Chopper and Divide & Conquer. Intraoperative data were collected and submitted for the statistical analysis. Results: 36 eyes were included, 19 eyes with Ultra-Chopper and 17 eyes with Divide & Conquer. Groups were statistically equivalent in age and nucleus density. There were no surgical complications. Torsional time and cumulative dissipated energy were significantly reduced in the ultra-chopper group. The ultra-chopper group had less total case time, fluid usage and aspiration (ASP) time. Conclusion: The ultra-chopper tech- nique can reduce ultrasound energy dissipation during cataract surgery, and decrease case time, fluid usage and ASP time.

关键词： Ultra-Chopper Cataract Aspiration

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