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Toric versus monofocal intraocular lens implantation in patients with cataract and corneal astigmatism: results of an RCT
Session Title: Toric IOL Outcomes
Session Date/Time: Monday 07/10/2013 | 16:30-18:30
Paper Time: 16:30
Venue: Auditorium (First Floor)
First Author: : N.Visser THE NETHERLANDS
Co Author(s): : H. Beckers N. Bauer S. Gast B. Zijlmans C. Webers R.
To compare toric and monofocal intraocular lens (IOL) implantation in patients with cataract and corneal astigmatism.
University Eye Clinic Maastricht, the Netherlands.
Eighty-six patients with bilateral cataract and at least 1.25 D of corneal astigmatism were randomized for either bilateral toric or bilateral monofocal IOL implantation. Six months postoperatively the uncorrected and best-corrected distance visual acuity (UDVA and BDVA), refraction, misalignment, spectacle use for distance vision and complications were evaluated.
Postoperatively, the UDVA in the toric and monofocal group was 0.06 ± 0.14 and 0.21 ± 0.16 LogMAR, respectively (P<0.001). The BDVA was comparable in both groups: 0.00 ± 0.11 LogMAR in the toric group and -0.01 ± 0.09 LogMAR in the monofocal group(P>0.05). Seventy percent of patients with toric IOLs achieved a Snellen UDVA of at least 20/25, compared to 30% of patients with monofocal IOLs (P< 0.001). A refractive cylinder of 1.0 D or less was achieved in 74% of patients in the toric group and 30% of patients in the monofocal group (P<0.001). Seventy-eight percent of patients with toric IOLs reported being spectacle independent for distance vision, compared to 22% of patients with monofocal IOLs (P<0.001). Mean misalignment of toric IOLs was 3.6 ± 3.2 degrees and IOL repositioning was required in 1 patient.
Toric IOLs result in a better UDVA, a lower refractive astigmatism and a higher spectacle independence for distance vision compared to monofocal IOLs.