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Advanced technology of toric IOL implantation using a complex of modern diagnostic and operating systems

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Session Details

Session Title: Pseudophakic IOLs: Toric, Multifocal, Accommodative

Session Date/Time: Monday 09/10/2017 | 14:30-16:00

Paper Time: 15:05

Venue: Room 4.1

First Author: : I.Grytsenko UKRAINE

Co Author(s): :    S. Dmytriiev   Y. Lazar                 

Abstract Details


To evaluate safety and effectiveness of preoperative marking of corneal meridians using Verion Image Guided System and Femtosecond laser LenSx Alcon.


The Filatov institute of Eye Diseases and Tissue Therapy of the National Academy of Medical Sciences of Ukraine. Odesa Ukraine.


A prospective study comprised 50 eyes of 50 patients with pre-existing corneal astigmatism between 0,75D – 3,5 D and cataract. Verion image guide system allows establishing precisely the required corneal strong meridian for toric intraocular lens (IOL) implantation. Nevertheless, clinical changes (hemorrhages and conjunctival chemosis) caused by long-term vacuum application appear on eyeball surface after docking during FL surgery step, which complicate patient’s registration in Verion image guide system after FL surgery step.


We suggest using corneal incisions made by femtosecond laser as a landmark of corneal main meridian. Corneal incisions made by femtosecond laser serve as the basic determinant landmark for the selection of the main corneal meridian in order to control the correct location of toric IOL in an eye. By 6 months postoperatively, the manifest refraction spherical equivalent for all eyes was -0,09±0,31 D, mean cylindrical component was -0,25±0,5 D.


The complex use of Verion diagnostic system and LenSx femtosecond laser in phacoemulsification of age-related cataract allows for precise verification of corneal meridians after docking. This enables to place toric IOL precisely relative to the strong corneal meridian and to avoid errors in comparison of photo images made before and after docking in Verion following the laser step of the surgery.

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