Surgical Efficiency Comparison Between Two Phacoemulsification Systems

Abstract

Purpose

To assess the surgical efficiency in cataract surgery comparing two phacoemulsification systems.

Methods

Prospective, consecutive-comparative study in a two-site private practice. Three hundred and one eyes undergoing standard or femtosecond laser-assisted (FLACS) cataract surgery with either the R-Evo Smart (BVI, Waltham, USA) and/or the Centurion Vision System (Alcon, Fort Worth, USA). Preoperative eye characteristics (degree of cataract using the lens opacities classification system LOCS III grading) and intraoperative outcomes (total ultrasound time and total estimated fluid aspirated/drainage bag weighting) were registered in all cases.

Results

One hundred and fifty-five eyes undergone cataract surgery with the R-Evo Smart and 146 eyes with the Centurion Vision System phacoemulsification systems. Mean cataract grade was 3.07 ± 0.78 and 2.96 ± 0.85 for the R-Evo Smart and Centurion Vision System groups, respectively (p = 0.12). Mean total ultrasound time was 18.99 ± 12.85 and 40.24 ± 21.91 seconds for the R-Evo Smart and Centurion Vision System groups, respectively (p < 0.01). Mean total estimated fluid aspirated/drainage bag weighting was 53.00 ± 14.56 g and 54.33 ± 14.88 cc for the R-Evo Smart and Centurion Vision System groups, respectively (p = 0.21). Considering non-FLACS surgery (98 eyes with the R-Evo Smart and 63 eyes with the Centurion Vision System), mean cataract grade was 2.95 ± 0.74 and 2.97 ± 0.91 for the R-Evo Smart and Centurion Vision System groups, respectively (p = 0.44). Mean total ultrasound time was 19.96 ± 11.20 and 42.84 ± 28.35 seconds for the R-Evo Smart and Centurion Vision System groups, respectively (p < 0.01). Mean total estimated fluid aspirated/drainage bag weighting was 55.95 ± 14.76 g and 55.97 ± 13.62 cc for the R-Evo Smart and Centurion Vision System groups, respectively (p = 0.49). No adverse events were found in the two groups of eyes.

Conclusion

The objective measurement of surgical efficiency through total ultrasound time during lens removal and fluid consumption during both lens removal and irrigation/aspiration proved R-Evo Smart to be an efficient phacoemulsification platform, in comparison with the current standard of care Centurion Vision System.

Keywords:

• cataract
• estimated fluid aspirated
• phacoemulsification
• surgical efficiency
• ultrasound time

Data Sharing Statement

The data are not available for sharing.

Disclosure

Dr. Ibarz-Barberá reports has received grants from BVI, Cutting Edge and Hoya Surgical Optics. Dr. Paz Orts-Vila has received grants for Alcon Laboratories, AST Products, BVI, Carl Zeiss Meditec, Hoya Surgical Optics, HumanOptics, Johnson&Johnson and Ocumension. Dr Tañá-Rivero has received grants for Alcon Laboratories, AST Products, BVI, Carl Zeiss Meditec, Hoya Surgical Optics, HumanOptics, Johnson&Johnson, Staar Surgical and Vialase Inc. The authors report no other conflicts of interest in this work.

Additional information

Funding

This study was funded by Beaver-Visitec International, Inc. (BVI), Waltham, USA.