Comparison of cumulative dissipated energy between femtosecond laser-assisted and traditional phacoemulsification cataract surgery

Session Details

Session Title: Cataract Surgery Equipment/Instrumentation/Surgical Devices

Session Date/Time: Monday 09/10/2017 | 16:30-18:00

Paper Time: 16:53

Venue: Room 4.4

First Author: : F.Pastor Pascual SPAIN

Co Author(s): :    R. Ruiz-Mesa   A. Abengozar-Vela                 

Abstract Details

Purpose:

To study the parameters obtained with Centurion Vision System (Alcon, Fort Worth, Texas) using the femtosecond laser-assisted or traditional phacoemulsification for cataract extraction.

Setting:

Oftalvist CIO Jerez, Jerez de la Frontera, Spain

Methods:

This was a prospective study in patients undergoing cataract surgery by one single surgeon in one surgical center using a balanced 30º tip. Data values from the Centurion Vision System interface at Chop1, Chop2 and Final Case were compared. The studied parameters were cumulative dissipated energy (CDE), ultrasound (U/S) total time, estimated fluid usage, total aspiration time and total case time. The CDE parameter is a specified measure for Centurion that represents the dissipated energy of the U/S tip and infusion sleeve at the incision point during the phacoemulsification. A low CDE value indicates less energy at the incision site.

Results:

The mean value of each studied parameter at the end of cataract extraction for traditional phacoemulsification and femtosecond laser-assisted cataract surgery was respectively as follows: CDE was 4.222.28 and 4.753.11; U/S total time was 19.19.2 and 20.611.3 s; Estimated fluid usage was 33.09.4 and 36.48.4 mL; Total aspiration time was 106.424.6 and 132.431.8 (p<0.01); and Total case time was 300.556.6 and 307.551.1 s. There were no statistically significant differences at Chop1 and Chop2 for any studied parameter.

Conclusions:

Less aspiration time was used in traditional phacoemulsification however values of CDE and operative times were equivalent between both techniques. Nevertheless, femtosecond laser-assisted cataract surgery is an emerging technology that needs more studies in terms of postoperative rehabilitation and refractive outcomes.

Financial Disclosure:

NONE