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Femtosecond laser-assisted refractive cataract surgery using the Catalys System: first clinical results

Session Details

Session Title: Cataract I

Session Date/Time: Friday 03/02/2012 | 10:30-12:30

Paper Time: 11:05

Venue: Hall 1

First Author: : H.Dick GERMANY

Co Author(s): :    F. Hengerer   I. Conrad Hengerer           

Abstract Details


To clinically evaluate the Catalys Precision Laser System (OptiMedica Corp., Santa Clara, California) which combines an ultra-rapid femtosecond laser, integrated optical coherence tomography imaging, and specific pattern scanning technology. It is capable of performing capsulotomy, lens fragmentation, arcuate relaxing incisions, and cataract incisions and received the Conformité Européenne (CE) Mark in September 2011. The Catalys system includes an innovative Liquid Optics Interface to optimize the optical path to the patient’s eye and a proprietary Integral Guidance System to ensure precisely delivered femtosecond laser pulses.


University Eye Hospital, Bochum, Germany


As part of a prospective study of femtosecond laser-assisted cataract surgery 29 eyes of 29 patients were included. The accuracy of the capsulotomy size was measured by deviation of capsule diameter from intended target. The capsulotomy shapes, and centration relative to the dilated pupil were quantified as well as the used cumulative ultrasound energy. Clinical parameter like visual acuity, IOL centration, capsular overlap and corneal clarity were evaluated postoperatively. RESULTS The Catalys improved the precision of sizing the capsulotomy compared with manual technique. The system also demonstrated a significant improvement in precision of capsulotomy size and shape. The use of the laser also resulted in a considerable reduction in ultrasound energy use during phacoemulsification.


The improvements in precision made possible by the Catalys system were truly remarkable and represent a significant advancement in the practice of modern cataract surgery.

Financial Disclosure: