Official ESCRS | European Society of Cataract & Refractive Surgeons
Copenhagen 2016 Registration Programme Exhibitor Information Virtual Exhibition Satellite Meetings Glaucoma Day 2016 Hotel Star Alliance

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

This Meeting has been awarded 27 CME credits


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Accuracy in toric intraocular lens alignment using a perioperative automated digital marker system

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Session Details

Session Title: Pseudophakic IOLs: Toric I

Session Date/Time: Saturday 10/09/2016 | 16:00-18:00

Paper Time: 17:24

Venue: Hall C2

First Author: : C.Schweitzer FRANCE

Co Author(s): :    L. Tellouck   J. Tellouck   C. Costet   D. Touboul   T. Cornut        

Abstract Details


To analyze the accuracy in toric intraocular lens (IOL) alignment and refractive outcomes using an intraoperative automated digital marker system.


University hospital of Bordeaux (France)


Prospective monocenter study including consecutive patients undergoing an uneventful cataract surgery with a toric IOL (Acrysof, Alcon, Fortworth, USA) implanted in the capsular bag and having a corneal astigmatism superior to 1 diopter. Each patient underwent a measurement of total corneal astigmatism using a placido-dual Scheimpflug system (GalileiG4®, Ziemer, Switzerland) and an evaluation of limbal vessels using Verion system® (Alcon, Fortworth, USA). Digital marking procedure was performed using Verion system integrated in the surgical microscope. Uncorrected and best-corrected visual acuity, average error in toric IOL axis using Placido-Dual Scheimpflug Galilei® were analyzed at 3 days and one month after surgery.


30 eyes of 20 patients were included, the mean age was 66.7±8.5 years. Mean preoperative total corneal power astigmatism was 1.74±0.73 diopters. Mean average error in toric IOL axis was 2.72±1.27 degrees at day 3 and 2.93±2.54 degrees at one month. At one month, mean uncorrected visual acuity was 0.14±0.25 LogMAR and mean best-corrected visual acuity was -0.001±0.05 LogMAR. The automatic recognition of limbal vessels by the digital marker system was complete for all surgical procedures and no intraoperative or postoperative complications were recorded. A comparison with a manual ink-marking group will be also provided.


Toric IOLs provide very good anatomical and refractive outcomes but a small misalignment can induce a decrease in toric IOL performance to treat astigmatism. In a consecutive case series, our study shows a very accurate positioning of toric IOL from the intended axis leading to an average error inferior to 5 degrees. By taking into account cyclotorsion and by tracking the eye during the surgical procedure, automated digital marker systems may help clinicians to improve refractive outcomes of astigmatic patients. Comparative studies with a manual ink-marking procedure are required to quantify the clinical benefit for patients of a such innovation.

Financial Disclosure:


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