Evaluation Of Reading Performance After Refractive Lens Exchange With Diffractive Trifocal Iols Using An Electronic Reading Desk
Published 2025 - 43rd Congress of the ESCRS
Reference: FP32.10 | Type: Free paper | DOI: 10.82333/8fjj-xg47
Authors: Alicia Hoi Ying Liu* 1 , Tsz Chun Jason Wong 2 , Arijit Mitra 3 , Ankur Barua 3
1Ophthalmology and Visual Sciences,The Chinese University of Hong Kong,Hong Kong,Hong Kong;Birmingham & Midland Eye Centre,Birmingham,United Kingdom, 2Ophthalmology and Visual Sciences,The Chinese University of Hong Kong,Hong Kong,Hong Kong, 3Birmingham & Midland Eye Centre,Birmingham,United Kingdom
Purpose
To evaluate the near and intermediate reading performance after binocular refractive lens exchange and implantation of the Vivinex Gemetric and Vivinex Gemetric Plus IOLs (Hoya Surgical Optics) using the pairing approach (first eye treated with Gemetric and second eye with Gemetric Plus) using the Salzburg Reading Desk (SRD Vision).The trifocal IOLs, distinguished by their different light distribution characteristics, are based on the hydrophobic Vivinex platform and are preloaded in the multiSert injector.
Setting
This prospective, interventional clinical study is conducted at the university eye clinic in Heidelberg, Germany.
Methods
In this study, 56 eyes of 28 patients will undergo bilateral refractive lens exchange with the implantation of Vivinex Gemetric/Gemetric Plus IOLs using the pairing approach. Reading performance was evaluated preoperatively and at 6 months postoperatively. Monocular and binocular uncorrected and distance corrected reading acuity and reading speed were assessed at 40 cm and 80 cm distance and at the subjectively preferred near and intermediate distances.
Results
15 patients were implanted with the Vivinex Gemetric and Vivinex Gemetric Plus IOLs. The mean (±SD) patient age was 56 ± 6 years. Before the surgery (N=15 patients), the mean binocular uncorrected reading acuity was 0.59 ± 0.02 logMAR at near (40 cm) and 0.41 ± 0.25 logMAR at intermediate (80 cm) distances. Six months postoperatively (N=8 patients), the mean binocular uncorrected reading acuity was 0.23 ± 0.10 logMAR at the set near distance (40 cm) and 0.15 ± 0.07 logMAR at the subjectively preferred near distance (31.9 ± 3,6 cm). At the set intermediate distance (80cm), the postoperative mean uncorrected reading acuity was 0.16 ± 0.07 logMAR.
Conclusions
Uncorrected intermediate and near reading function considerably improved after bilateral diffractive trifocal IOL implantation. Preliminary analysis shows a good reading function for the set and subjectively preferred distances.