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Functional outcome after implantation of a new aspheric trifocal lens (+/- Torus)

Poster Details

First Author: D.Breyer GERMANY

Co Author(s):    H. Kaymak   K. Klabe   C. Pohl        

Abstract Details



Purpose:

To evaluate the visual outcomes after trifocal IOL implantation, comparison between toric (tt) and non-toric IOL (ntt).

Setting:

Breyer Kaymak Augenchirurgie

Methods:

This retrospective study comprises results after bilateral implantation of either a nt IOL (38 patients) or a tt IOL (either bilateral or monolateral, 21 patients). Each eye was documented postoperatively seven days, binocular exams followed after 1, 3 month after surgery. Subjective refraction (SR), defocus curve (DC), contrast sensitivity (CS), halos & glare assessment (HGA) and a patient questionnaire were documented.

Results:

Mean postoperative spherical equivalent resulted in -0.02 (non-toric) and -0.38 D. Uncorrected far distance VA was in both IOL types better than 0.0 (logMAR). Intermediate VA and near visual acuity was comparable between both IOL types (IV > 0.15 logMAR, NV > 0.20 logMAR). The respective defocus curve showed 2 peaks for near- & far distance VA. IV was represented by a pleateu instead of a peak at around 70 cm with a mean of 0.05 logMAR (ntt IOL) and 0.09 logMAR (tt IOL). CS was very similar with both IOL types and was comparable to CS of phakic younger patients at certain spatial frequencies. Photopic phenomena like halos and glares were remarkably low reported in both IOL types.

Conclusions:

Considering life style aspects of our patients in case of a computer-based daily routine, as well as menage, handcraft or excellent night vision, the trifocal lens accomplishes patients needs better compared to the former generation IOL including tricky light conditions, especially in ā€˛younger' patients. All patients did conduct nocturnal car trips, but only the trifocal IOL population stated the absence of disturbing halos & glares. FINANCIAL INTEREST: NONE

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