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Comparative Study
. 2015 Aug 21:15:110.
doi: 10.1186/s12886-015-0089-9.

Binocular function to increase visual outcome in patients implanted with a diffractive trifocal intraocular lens

Florian T A Kretz  1   2 , Matthias Müller  3 , Matthias Gerl  4 , Ralf H Gerl  5 , Gerd U Auffarth  6
Affiliations
Comparative Study

Binocular function to increase visual outcome in patients implanted with a diffractive trifocal intraocular lens

Florian T A Kretz et al. BMC Ophthalmol. .

Abstract

Background: To evaluate binocular visual outcome for near, intermediate and distance compared to monocular visual outcome at the same distances in patients implanted with a diffractive trifocal intraocular lens (IOL).

Methods: The study comprised of 100 eyes of 50 patients that underwent bilateral refractive lens exchange or cataract surgery with implantation of a multifocal diffractive IOL (AT LISA tri 839MP, Carl Zeiss Meditech, Germany). A complete ophthalmological examination was performed preoperatively and 3 month postoperatively. The main outcome measures were monocular and binocular uncorrected distance (UDVA), corrected distance (CDVA), uncorrected intermediate (UIVA), and uncorrected near visual acuities (UNVA), keratometry, and manifest refraction.

Results: The mean age was 59.28 years ± 9.6 [SD] (range 44-79 years), repectively. There was significant improvement in UDVA, UIVA, UNVA and CDVA. Comparing the monocular results to the binocular results there was a statistical significant better binocular outcome in all distances (UDVA p = 0.036; UIVA p < 0.0001; UNVA p = 0.001). The postoperative manifest refraction was in 86 % of patients within ± 0.50 [D].

Conclusions: The trifocal IOL improved near, intermediate, and distance vision compared to preoperatively. In addition a statistical significant increase for binocular visual function in all distances could be found.

Trial registration: German Clinical Trials Register (DRKS) DRKS00007837.

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Figures

Fig. 1
Fig. 1
AT LISA tri 839MP (Calr Zeiss MEditech, Jena, Germany)
Fig. 2
Fig. 2
Percentage of patients in deviation of target refraction (Spherical Equivalent [SE])
Fig. 3
Fig. 3
Cumulative uncorrected visual acuity [logMAR] in distance intermediate and near (n = 50) mUDVA – monocular UDVA, bUDVA – bincoluar UDVA, mUIVA – monocular UIVA, bUIVA – binocular UIVA, mUNVA – monocular UNVA, bUNVA – binocular UNVA
See this image and copyright information in PMC

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