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Balance 45 versus Mini-Flared 45 with the Centurion vision system: comparative analysis

Poster Details

First Author: A.Aramburu Del Boz SPAIN

Co Author(s):                  

Abstract Details


Latest generations of phacoemulsification systems provide a variety of options using advanced power modulation of ultrasound energy and improved fluidic control. These advances in technology have enhanced surgical performance and outcomes. The aim of the present study is to carry out a comparative analysis between the balance 45 and the miniflared 45 tips using the Centurion Vision System in cataract patients.


Clínica Oftalvist CIO Jerez, Jerez de la Frontera, Spain.


This study included 100 eyes of 100 patients submitted to cataract surgery using the Centurion Vision system (Alcon Laboratories Inc). This was a randomized, single-masked study in cataract eyes with grade 2-3 (LOCS II). Eyes were randomly assigned to Balance 45 tip (50 eyes) or Miniflared 45 tip (50 eyes) groups and submitted to cataract surgery with the same Centurion parameters using different tips. All surgeries were performed by a single experienced surgeon (R.R.M). Assessments included cumulative dissipated energy, ultrasound time, longitudinal energy, torsional energy, fluid volume, aspiration time and intraoperative complications. Comparisons among the two groups were conducted to assess possible differences. The data were analyzed using the SPSS software and a p value less tan 0.05 was considered statistically significant.


A total of 100 eyes of 100 patients were included in the study. There were no intraoperative complications. Kruskal-Wallis test was used for comparison between tip groups. Mean ultrasound time was 47.92±5.03 and 53.93±13.37 sec for the Balance and Miniflared tips, respectively (P=0.10). Total longitudinal percentage of energy was 0.28±0.23 and 1.34±1.48, respectively (P=0.01). The longitudinal energy time for position 3 was 1.7±1.7 and 15.5±26.5 sec, respectively (P=0.06). The total torsional percentage of energy was 56.14±7.32 and 63.69±8.4, respectively (P=0.02). The torsional energy time for position 3 was 1648.8±765.1 and 1661.5±500 sec, respectively (P=0.48). The cumulative dissipated energy was 0.07±0.01 and 0.09±0.02, respectively (P=0.03). The aspiration time was 35.88±6.33 and 40.20±12.95 sec, respectively (P=0.18). The fluid volume was 23.16±1.04 and 23.85±2.98 ml, respectively (P=0.24). Taking into account these outcomes, both tips are efficient for the cataract surgery but showing the Balance tip group a significant lower longitudinal and torsional percentage energy and lower cumulative dissipated energy (P<0.05).


The Centurion Vision system demonstrated enhanced surgery efficiency both using the Balanced 45 and Miniflared 45 tips. The use of the Balance tip with the Centurion Vision system seems to provide better outcomes in relation to percentage and cumulative dissipated energy. FINANCIAL INTEREST: NONE

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