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Light distortion analysis, ocular aberrometry with pyramidal wavefront sensor and visual outcomes in patients implanted with diffractive trifocal intraocular lens: long-term follow-up

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Session Details

Session Title: Presented Poster Session: Multifocal IOLs

Venue: Poster Village: Pod 1

First Author: : R.Ferreira-Oliveira SPAIN

Co Author(s): :    A. Plaza-Puche   J. Alio           

Abstract Details

Purpose:

To objectively evaluate light distortion and ocular aberrometry profiles of eyes implanted with a trifocal intraocular lens (IOL) and to correlate these results with visual outcomes and patient satisfaction after long-term follow-up.

Setting:

VISSUM Alicante, Spain.

Methods:

Prospective observational study enrolling 20 eyes of 10 patients who underwent uneventful microincisional cataract surgery (MICS) with bilateral implantation of diffractive trifocal IOL (Finevision Micro F, PhysIOL, Belgium). After a mean follow-up period of 59.3 ± 2.0 months, patients answered a vision satisfaction questionnaire (NAVQ-10) and were assessed for uncorrected and corrected distance and near visual acuity (UDVA, CDVA, UNVA, CNVA), distance-corrected near and intermediate VA (DCNVA, DCIVA), defocus curve, light-distortion analysis (LDA, CEORLab, Portugal), Pelli-Robson contrast sensitivity function (CSF) test, corneal topography and aberrometry (Sirius, CSO) and total ocular aberrometry with a pyramidal wavefront sensor (Osiris, CSO).

Results:

Mean age was 71.9 ± 3.6 years (range 65-78). There was significant improvement of UDVA, CDVA, DCNVA and DCIVA in all eyes (P<0.01). When compared to a control group of 24 phakic eyes virgin of surgical treatment, LDA showed significantly higher values of light-distortion index and best-fit circle (BFC) radius in the study group (P<0.01). LDA parameters were significantly correlated with ocular wavefront aberrometry values in terms of higher-order aberrations (P<0.01), trefoil (P<0.01) and coma (P=0.03). Patients reported to be completely, very and moderately satisfied with their uncorrected near vision in 50%, 40% and 10% of cases, respectively.

Conclusions:

The studied diffractive trifocal IOL provides good visual results for distance, intermediate and near vision, with high levels of patient satisfaction at long-term follow-up, although it produces significantly higher light distortion when compared to unoperated phakic eyes.

Financial Disclosure:

NONE

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