Cataract Surgery Performed by High Frequency LDV Z8 Femtosecond Laser: Safety, Efficacy, and Its Physical Properties.

Bojan Pajic,Zeljka Cvejic,Brigitte Pajic-Eggspuehler

doi:10.3390/s17061429

Bojan Pajic, Zeljka Cvejic + Show 1 more

Open Access

https://doi.org/10.3390/s17061429

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Abstract

Background: The aim of our study was to investigate the safety and efficacy of the LDV Z8 femtosecond laser in cataract surgery compared to the conventional procedure. Methods: This prospective study was performed at the Swiss Eye Research Foundation, Eye Clinic ORASIS, Reinach, Switzerland. The study included 130 eyes from 130 patients: 68 treated with femtosecond laser-assisted cataract surgery (FLACS) using the FEMTO LDV Z8 and 62 treated with conventional phacoemulsification. Capsulotomy and lens fragmentation in the laser group were performed with the FEMTO LDV Z8 femtosecond laser system, which employs a new, low-energy, high repetition rate laser process for cataract surgery. In the conventional group, the capsulotomy was performed by a cystotome, and lens fragmentation was achieved by the stop-and-chop. Results: Ease of phacoemulsification (on a 4-point scale), the completeness of capsulotomy (on a 10-point scale), effective phacoemulsification time (seconds), uncorrected distance visual acuity (UCVA), best spectacle-corrected distance visual acuity (BSCVA), spherical equivalent (SE), and safety of the procedure were evaluated. The total follow-up time was three months. Conclusions: FLACS with the FEMTO LDV Z8 system was characterized by complete and reproducible capsulotomy and highly effective lens fragmentation. Postoperative visual outcomes were excellent, and the safety of the procedure was optimal.

Highlights

Femtosecond laser technology was first introduced in corneal refractive surgery for performingLASIK flaps
These studies have demonstrated that femtosecond laser-assisted capsulotomies have a higher precision regarding circularity and placement versus achieved diameter than those created by manual continuous curvilinear capsulorhexis
The inclusion criteria required eligibility to undergo lens extraction by phacoemulsification followed by IOL implantation, an ability to complete patient interface docking with the femtosecond laser, an age of 50 years of older, willingness and ability to return for scheduled follow-up examination, and no current infections

Summary

Introduction

Femtosecond laser technology was first introduced in corneal refractive surgery for performingLASIK flaps. In the past few years, a significant amount of research investigating the advantages of femtosecond laser-assisted cataract surgery compared to conventional ultrasound phacoemulsification cataract surgery has been conducted. These studies have demonstrated that femtosecond laser-assisted capsulotomies have a higher precision regarding circularity and placement versus achieved diameter than those created by manual continuous curvilinear capsulorhexis. The aim of our study was to investigate the safety and efficacy of the LDV Z8 femtosecond laser in cataract surgery compared to the conventional procedure. The study included 130 eyes from 130 patients: 68 treated with femtosecond laser-assisted cataract surgery (FLACS) using the FEMTO LDV Z8 and 62 treated with conventional phacoemulsification. Postoperative visual outcomes were excellent, and the safety of the procedure was optimal

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