To compare visual performance and quality of life (QOL) following bilateral implantation of a novel non-diffractive extended depth-of-focus (EDOF) intraocular lens (IOL) and a trifocal IOL.
University Faculty of Medicine, Department of Ophthalmology, Ankara, Turkey
Prospective comparative interventional case series
Hundred and four eyes of 52 cataract patients, bilaterally implanted with a non-diffractive EDOF IOL or a trifocal IOL were included. Outcome measures were uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), distance corrected intermediate visual acuity (DCIVA) and distance corrected near visual acuity (DCNVA), defocus-curves, QOL (Visual Function Index-14), quality of vision (Quality of Vision QoV index), contrast sensitivity (Pelli-Robson chart) and binocular reading speed.
The UDVA and CDVA were better in the EDOF group (0.05±0.04 and 0.01±0.04) than the trifocal group (0.13±0.06 and 0.11±0.07) (p=0.02 and 0.01). Defocus curves showed that visual acuity was better with the EDOF IOL for vergences at 0.00, -0.50 and -1.00; and better with the trifocal IOL for vergences at -2.50, -3.00, -3.50 and -4.00. Contrast sensitivity scores were similar with both IOLs (p=0.12). The overall mean QOL scores were lower in the EDOF group indicating a better QOL (p=0.04). The QoV was better in the EDOF group with significantly less glare, halos, and blurry vision (p<0.01).
The EDOF IOL performed better at distance and the trifocal IOL performed better at near. Overall quality of life and quality of vision were better with the EDOF IOL.