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One and a half years of experience with VerionTM guiding system in cataract surgery with the implantation of an Acrysof IQ Toric lens

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Session Details

Session Title: Pseudophakic IOLs: Toric Cataract Surgery Equipment

Session Date/Time: Tuesday 08/09/2015 | 14:00-16:00

Paper Time: 14:58

Venue: Room 1

First Author: : I.Iliescu ROMANIA

Co Author(s): :    O. Moraru                    

Abstract Details

Purpose:

The VerionTM Guiding System was designed as a guidance and planning suite for cataract surgery in order to decrease variables and to provide more consistency to our refractive results. Our paper evaluates the clinical outcomes after one and a half year of experience with Verion assisted implantation of an Acrysof IQ Toric lens in patients with significant corneal astigmatism having routine cataract surgery.

Setting:

Oculus Eye Clinic ,Bucharest ,Romania

Methods:

Our study comprises 130 eyes of 95 patients. Corneal astigmatism measurements and IOL Toric power calculation were made in two ways: first (our standard method) with the Autokeratometer Topcon KR 8900 and then we input the data in the online Alcon Toric Calculator and second with Verion Reference Unit and we calculated the IOL Toric Power using the Verion Planner. We chose data from Verion measurements to compare them with the classic measurements. Postoperative distance UCVA, BCVA, objective and manifest refraction, residual refractive cylinder, spectacle independence and IOL axis alignment were evaluated at 1, 3 and 6 months postop.

Results:

Preoperative corneal astigmatism ranged from 0.75 to 4.18D. The mean refractive cylinder reduction at 1 month follow up was approximately 75% with a mean absolute post-operative residual refractive cylinder of 0.57D (SD 0.79D). Mean BCDVA was 0.93. Mean absolute IOL deviation off targeted axis was 2.3 degrees with deviation less than 5° in 88% of the eyes. We concluded that in 100 cases (76,9%) the K measurements were similar between the two methods, in 18 cases (13,8%) the Verion K measurements were superior and in 12 cases (~9,23%) the 'old' method of calculation, with Autokeratometry would have been more acurate.

Conclusions:

After one and a half year of experience with Verion assisted implantation of an Acrysof IQ Toric lens in patients with significant corneal astigmatism having routine cataract surgery, we conclude that this is a safe and effective method which decreases variables and provides more consistency to our refractive results. The Verion System makes the toric implantation easier, without the need of the preoperative or intraoperative corneal marking of the cylinder axis. Moreover, using this System, the IOL Toric alignment at the end of cataract surgery is more precise and the refractive predictability enhanced.

Financial Interest:

NONE

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