One year experience with a new toric trifocal IOL implantation in refractive lens exchange patients

Session Details

Session Title: Pseudophakic IOLs: Trifocal

Session Date/Time: Tuesday 08/09/2015 | 16:30-18:00

Paper Time: 17:38

Venue: Room 10

First Author: : E.Mertens BELGIUM

Co Author(s): :                        

Abstract Details

Purpose:

To evaluate the clinical performance, efficacy and safety and to study the implantation technique of a toric trifocal IOL (Toric Fine Vision).

Setting:

Medipolis-Antwerp Private Clinic,Antwerp, Belgium

Methods:

Prospective study. 18 eyes of 36 patients and with at least 1.50 diopters of preoperative corneal astigmatism underwent phacoemulsification and implantation of a toric, trifocal IOL. Targeted refraction was emmetropia for all cases. Intraoperative refraction was measured using the Optiwave Refractive Analysis (ORA) system wavefront aberrometer (WaveTec Vision Systems, Aliso Viejo, CA, USA) and the IOL position was optimised using the ORA instructions. Uncorrected visual acuity (UCVA), best corrected distance visual acuity (CDVA), intermediate and near vision (35 and 70 cm) and IOL misalgnment were evaluated one day (for far vision), one month and one year postoperatively.

Results:

After 1 year, all eyes obtained a UCVA of 20/30 or better. All eyes had binocular vision at 40 cm higher than 20/25. The intermediate vision was better than 20/25 with the best distance correction. Toric IOL implantation in 18 eyes resulted in an average of 1,9° rotation with the Toric FineVision IOL. For every degree of error in a toric IOL's rotational misalignment, there is a 3.3 percent decrease in the correction of astigmatism. So If a toric IOL is misaligned by 10 degrees, the astigmatism will be 33 percent undercorrected. If the toric IOL is misaligned by 30 degrees, there will be no astigmatism correction. No complaints of excessive halos or glare were reported.

Conclusions:

The new toric Trifocal IOL implantation after phacoemulsification was a safe and effective method for pseudophakic presbyopia and astigmatism correction in patients at all distances. In this series were no misaligned IOLs due to the verification of the toric IOL positioning at the end of surgery with the Optiwave Refractive Analysis (ORA) system wavefront aberrometer.

Financial Interest:

NONE