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. 2015 Jul 22:9:1367-72.
doi: 10.2147/OPTH.S88225. eCollection 2015.

Comparison of cumulative dissipated energy between the Infiniti and Centurion phacoemulsification systems

Ming Chen  1 , Erik Anderson  2 , Geoffrey Hill  3 , John J Chen  4 , Thomas Patrianakos  2
Affiliations

Comparison of cumulative dissipated energy between the Infiniti and Centurion phacoemulsification systems

Ming Chen et al. Clin Ophthalmol. .

Erratum in

Abstract

Purpose: To compare cumulative dissipated energy between two phacoemulsification machines.

Setting: An ambulatory surgical center, Honolulu, Hawaii, USA.

Design: Retrospective chart review.

Methods: A total of 2,077 consecutive cases of cataract extraction by phacoemulsification performed by five surgeons from November 2012 to November 2014 were included in the study; 1,021 consecutive cases were performed using the Infiniti Vision System, followed by 1,056 consecutive cases performed using the Centurion Vision System.

Results: The Centurion phacoemulsification system required less energy to remove a cataractous lens with an adjusted average energy reduction of 38% (5.09 percent-seconds) (P<0.001) across all surgeons in comparison to the Infiniti phacoemulsification system. The reduction in cumulative dissipated energy was statistically significant for each surgeon, with a range of 29%-45% (2.25-12.54 percent-seconds) (P=0.005-<0.001). Cumulative dissipated energy for both the Infiniti and Centurion systems varied directly with patient age, increasing an average of 2.38 percent-seconds/10 years.

Conclusion: The Centurion phacoemulsification system required less energy to remove a cataractous lens in comparison to the Infiniti phacoemulsification system.

Keywords: Centurion Vision System; Infiniti Vision System; cumulative dissipated energy; phacoemulsification.

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Figures

Figure 1
Figure 1
Comparison of CDE between Centurion system and Infiniti system among five surgeons. Abbreviations: CDE, cumulative dissipated energy; SE, standard error.
Figure 2
Figure 2
Comparison of CDE between Centurion system and Infinity system across age (years) among five surgeons combined. Abbreviation: CDE, cumulative dissipated energy.
See this image and copyright information in PMC

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