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Session Details

Session Title: Femto Cataract II

Session Date/Time: Monday 15/09/2014 | 14:30-16:30

Paper Time: 14:36

Venue: Boulevard B

First Author: : I.Solomatin LATVIA

Co Author(s): :    J. Gertnere   A. Solomatin   M. Solomatin        

Abstract Details

Purpose:

To investigate the safety and efficacy of the Lensex (Alcon, USA) femtosecond laser-assisted cataract surgery system compared with conventional phacoemulsification cataract extraction.

Setting:

Dr.Solomatin „ Eye Center”, Riga, Latvia.

Methods:

Femtosecond laser-assisted cataract surgery involved anterior capsulotomy and lens fragmentation based on optical coherence tomography-guided treatment mapping. Conventional cataract surgery involved manual continuous curvilinear capsulorhexis. Both procedures were completed by standard phacoemulsification and insertion of an intraocular lens. . Cataract was combined with the following pathology: glaucoma (19 eyes), lens subluxation and pseudoexfoliative syndrome (2 eyes), myopia of high degree (4 eyes). The following examinations were performed before the surgery: vision acuity check, tonometry, biomicroscopy, A-scan, IOL-master and perimetry, optic nerve OCT and ORA in cases of glaucoma.

Results:

One hundred per cent of cases treated with the femtosecond laser had a complete capsulotomy. Effective phacoemulsification time was reduced by 77% in the femtosecond group (P < 0.0001). The parameters of ultrasound used during the surgery were in average 15.8 % (power), 0.55% (phacoemulsification time) and 0.1 (ultrasound time). Twenty-six cases in the femtosecond group versus one case in the conventional group had 0 effective phacoemulsification time (P < 0.0001). Vision acuity (VA), tonometry, the number of complications, ultrasound parameters and intraocular surgery time were evaluated. There were no «bridges» during femtocapsulorhexis, and no posterior capsula ruptures or other complications during phacoemulsification. Before operation VA ranged from pr.certa to 0.5 and average IOP was 20.6 mm Hg After the surgery VA parameters were as follows: 0.7; 0.8 respectively 1 week and 1 month after the surgery and kept stable till all observation period. IOP dynamics was as follows: 1 week- 21.7, 1 month - 15.04 mm Hg. The parameters of ultrasound used during the surgery were in average 17.8 % (power), 0.67 (phacoemulsification time) and 0.1 (ultrasound time) we don't see any differences between endothelial cell density in both types of surgeries

Conclusions:

Femtosecond laser-assisted cataract surgery appears to be as safe as conventional cataract surgery in the short term and results in significantly lower effective phacoemulsification time. Although it may allow for greater efficiency and decreased postoperative complications, further research is needed into long-term safety aspects such as corneal endothelial cell loss.

Financial Interest:

NONE

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