Dr. Marques : Comparison of visual outcomes of 2 diffractive trifocal intraocular lenses.

Entrada del 25/02/2015
JOURNAL OF CATARACT & REFRACTIVE SURGERY
February 2015  Volume 41, Issue 2, Pages 354–363

http://www.jcrsjournal.org/article/S0886-3350(14)01753-2/abstract

As you will read it, results are of course better as compared to bifocal and are similar between 2 trifocal IOLs.
However, we can clearly see that defocus curve of FineVision (Group 1) is, at all distances, better than the one from At Lisa Tri (Group 2). The same for the contrast sensitivity and glares, FineVision gives better results than the At Lisa Tri.
  
Purpose
To compare the visual outcomes after cataract surgery with bilateral implantation of 1 of 2 diffractive trifocal intraocular lenses (IOLs).

Setting
Two clinical centers, Lisbon, Portugal.

Design
Prospective comparative case series.

Methods
Phacoemulsification with bilateral implantation of a Finevision Micro F IOL (Group 1) or an AT Lisa tri 839 MP IOL (Group 2) was performed. Over a 3-month follow-up, the main outcome measures were uncorrected distance visual acuity (UDVA), corrected monocular and binocular distance visual acuity, uncorrected intermediate visual acuity at 80 cm, distance-corrected intermediate visual acuity (DCIVA), uncorrected near visual acuity at 40 cm, distance-corrected near visual acuity (DCNVA), spherical equivalent (SE) refraction, defocus curves, contrast sensitivity, presence of dysphotopsia, and use of spectacles.

Results
Each group comprised 30 eyes (15 patients). The mean values at 3 months were UDVA, 0.03 logMAR ± 0.08 (SD) (Group 1) and 0.08 ± 0.12 (Group 2) (P = .765); DCIVA, 0.04 ± 0.07 logMAR and 0.18 ± 0.18 logMAR, respectively (P = .048); DCNVA, 0.03 ± 0.06 logMAR and 0.11 ± 0.08 logMAR, respectively (P = .032); SE, −0.25 ± 0.30 diopter (D) and −0.02 ± 0.39 D, respectively (P = .087). There was no significant difference in contrast sensitivity or dysphotopic phenomena between groups.

Conclusions
Both trifocal IOL models provided excellent distance, intermediate, and near visual outcomes. Monocular DCIVA and DCNVA appeared slightly better in Group 1 (FineVision IOL). Predictability of the refractive results and optical performance were excellent, and all patients achieved spectacle independence.

Financial Disclosure
Neither author has a financial or proprietary interest in any material or method mentioned.