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Efficiency of phacoemulsification-aspiration instrument with power output limited setting for different hardness of lens nucleus Satoshi Suzuki 1 , Shigeo Yaguchi 1 , Hitoshi Nishihara 1 1Dept of Ophthalmol,Showa Univ Fujigaoka Hosp pp.1419-1421
Published Date 2004/8/15
DOI https://doi.org/10.11477/mf.1410100679
  • Abstract
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 Purpose:To evaluate the efficacy of phacoemulsification-aspiration(PEA)instrument(Neo-SonixTM)with power output limiter for different hardness of lens nucleus. Method:Mock lens nucleus was produced in pig eyes. The hardness was set at either G2 or G3 according to classification by Emery-Little. We measured the duration of ultrasound application and PEA. The ultrasound output was set at 15%for G2 and at 20%for G3 lens nucleus. Results:Ultrasound application for G2 averaged 17.5 sec when the limiter was on and 25.8 sec when off. PEA time averaged 18.3 sec when the limiter was on and 31.3 sec when off. Ultrasound application for G3 averaged 22.0 sec when the limiter was on and 29.0 sec when off. PEA time averaged 27.0 sec when the limiter was on and 33.5 sec when off. Conclusion:PEA instrument with power output limiter for different hardness of lens nucleus reduced the duration of ultrasound application and PEA under experimental setting.


Copyright © 2004, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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