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10 - 14 Sept. 2016, Bella Center, Copenhagen, Denmark

This Meeting has been awarded 27 CME credits

 

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The first experience of femtosecond laser-assisted phacoemulsification in cataract surgery complicated by the weakness of the zonular lens support

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Session Details

Session Title: Moderated Poster Session: FLACS

Session Date/Time: Sunday 11/09/2016 | 14:00-15:00

Paper Time: 14:40

Venue: Poster Village: Pod 1

First Author: : I.Belonozhenko RUSSIA

Co Author(s): :    T. Semenova   I. Tereshchenko   E. Sorokin        

Abstract Details

Purpose:

To compare safety and clinical efficacy of the femtosecond laser-assisted phacoemulsification of the age-related cataract with the classical technique of ultrasound phacoemulsification in patients with initial weakness of the zonular lens support.

Setting:

State Institution Eye Microsurgery Complex named after academician S.N. Fyodorov, Khabarovsk, Russia

Methods:

In-depth analysis of surgical treatment of age-related cataract in 24 eyes (20 patients) with lens subluxation of the I degree, mydriasis not less than 5.0 mm, transparent cornea without previous surgical interventions. Patients age: 53-89 years, males - 14, women – 6. 1st group – 12 eyes (9 patients): femtosecond laser-assisted phacoemulsification was performed. 2nd group – 12 eyes (11 patients): standard phacoemulsification. In the femtosecond laser-assisted phacoemulsification we used femtosecond laser of LensX system (infrared wavelength, Alcon, USA). Pulse duration was 600-800 fs, working wavelength – 1030 nm, maximum pulse energy – 15-14 uJ, pulse repetition frequency – 50 kHz.

Results:

Significant factor in the femtosecond laser-assisted cataract surgery was the possibility to reduce mechanical stress on the Zinn ligament as nucleus fragments were only shared, but not crushed, in contrast to standard phacoemulsification. It should be noted that in all eyes the mechanical separation with chopper of nuclear fragments formed by femtolazer was performed easily, practically independently of the degree of nucleus density and the weakness of ligamentous apparatus. In all 12 eyes posterior chamber IOLs were successfully implanted in capsular bag. Previously, in 3 eyes intracapsular ring was implanted due to the initial expression of capsular tension ring (ICR-2).

Conclusions:

Comparative analysis of two surgical techniques showed that when using a femtosecond laser-assisted phacoemulsification mechanical stress on the Zinn ligament is minimized. This is achieved due to lack of traction component in the formation of the front circular capsulorhexis, there is no need to perform a mechanical fragmentation of nucleus. This increases the safety of the surgery, and creates more favorable conditions for nontraumatic intracapsular IOL implantation. In addition, a significant advantage of femtolazer technology is the high precision of the cuts, their strict conformity to set parameters in the formation of surgical approach, capsulorhexis performing, nucleus fragmentation.

Financial Disclosure:

NONE

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