Original articleVisual Performance of a Quadrifocal (Trifocal) Intraocular Lens Following Removal of the Crystalline Lens
Section snippets
Study Design
This prospective, single-arm study included patients after bilateral phacoemulsification and implantation of a panfocal IOL (AcrySof IQ PanOptix, TNFT00; Alcon Laboratories Inc, Fort Worth, Texas, USA) 3 months postoperatively.
Enrollment of Participants
The study was conducted from January 5, 2016, to January 18, 2017, consistent with the tenets of the Declaration of Helsinki, and in compliance with Good Clinical Practices, including International Harmonization Guidelines. The study was registered at ClinicalTrials.gov
Results
The mean ± standard deviation (range) patient age was 63 ± 8.8 years (39–77 years) and 52% (14 of 27 patients) were female. Cataract surgery was performed in 21 patients; in 6 patients a refractive lens exchange was performed. The mean lens power was +21.75 ± 3.108 D (14-28.5 D) and the target refraction was −0.06 ± 0.122 D.
Spherical equivalent changed from −0.10 ± 2.582 D (−7.25 to 5.875 D) preoperatively to −0.04 ± 0.321 D (−1.00 to 1.125 D) 3 months postoperatively. Ninety-three percent (50
Discussion
This study analyzed the outcomes after binocular implantation of the PanOptix IOL with regard to monocular and binocular visual performance at various distances (40 cm, 60 cm, 80 cm, 4 m), defocus curves, subjective quality of vision at daily life activities, and spectacle independence. The aim of multifocal IOL implantation is to provide patients with good uncorrected visual acuity for near, intermediate, and distance visual tasks and spectacle independence. Prior studies analyzing visual
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