Back to Journals » Clinical Ophthalmology » Volume 9

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

Authors Chen M, Anderson E, Hill G, Chen J, Patrianakos T

Received 8 May 2015

Accepted for publication 2 June 2015

Published 22 July 2015 Volume 2015:9 Pages 1367—1372

DOI https://doi.org/10.2147/OPTH.S88225

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Yang Liu

Peer reviewer comments 2

Editor who approved publication: Dr Scott Fraser


Ming Chen,1 Erik Anderson,2 Geoffrey Hill,3 John J Chen,4 Thomas Patrianakos2

1Department of Surgery, University of Hawaii, Honolulu, HI, 2Department of Ophthalmology, John H Stroger, Jr Hospital of Cook County, Chicago, IL, 3Department of Ophthalmology, UT Southwestern Medical Center, Dallas, TX, 4Biostatistics Core, John A Burns School of Medicine, University of Hawaii, Honolulu, HI, USA

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: phacoemulsification, cumulative dissipated energy, Centurion Vision System, Infiniti Vision System

Corrigendum for this paper has been published

Creative Commons License This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

Download Article [PDF]  View Full Text [HTML][Machine readable]