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Comparative analysis of qualitative and quantitative visual outcomes after implantation of a trifocal (AT LISA® tri839MP) and an extended-range-of-vision (Tecnis® Symfony) intraocular lens

Poster Details

First Author: L.Malheiro PORTUGAL

Co Author(s):    V. Lages   P. Baptista   M. Lume   R. Salgado   M. Brochado        

Abstract Details


To compare qualitative and quantitative visual outcomes after bilateral refractive lens exchange followed by implantation of two intraocular lenses (IOLs): one extended range of vision IOL, the Tecnis® Symfony, and one trifocal IOL, the AT LISA® tri839MP.


Department of Ophthalmology of Centro Hospitalar do Porto, Portugal


Retrospective study with 23 patients with bilateral implantation of Tecnis®Symfony IOL (n=20 eyes, group 1) or AT LISA® tri839MP IOL (n= 26 eyes, group 2) after refractive lens exchange. Best-corrected and uncorrected visual acuity (BCVA and UCVA) for distance, intermediate and near and refractive components were evaluated. Quality of vision was evaluated subjectively with a modified Cataract TyPESpecification questionnaire and objectively by an optical quality analysis system - HD Analyzer® - measuring the objective scatter index (OSI), potential visual acuity at fotopic, mesopic and scotopic conditions, modulation transfer function (MTF) and tear film (TF) analysis. Minimum follow-up was 12 months.


Postoperatively mean UCVA for distance was similar in both groups and of at least 0,10 logMAR (p=0,763). Better near UCVA was achieved with Tecnis®Symfony IOL, however differences were not statistically significant (p=0,334). In all eyes of both groups, postoperative spherical equivalent was within ±1.00D. OSI and MTF values were better in group 1 (p<0,001 for both). The variation in OSI during TF analysis was higher in group 2 (p=0,04). Patients' satisfaction was higher in group 1, none of the patients was dependent of spectacles in both groups and more patients revealed halos during the day in group 2.


The two IOLs had predictable refractive results and optical performance with all patients achieved spectacle independence for distance, intermediate and near vision. However Tecnis®Symfony IOL provided better quality of vision in qualitative and quantitative analysis. Patient's satisfaction was higher with Tecnis®Symfony IOL.

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