Fellow-Eye Comparison Of Monocular Visual Outcomes Following Monofocal EDOF And Trifocal EDOF IOL Implantation

PurposeTo compare intraindividual monocular visual performance of a monofocal EDOF and a trifocal EDOF IOL following bilateral cataract surgery.DesignSingle-center, prospective, fellow-eye comparison clinical trial.MethodsAll patients received uneventful bilateral cataract surgery with implantation of the monofocal EDOF Isopure IOL in the dominant eye and the trifocal EDOF FineVision Triumf IOL in the non-dominant eye. Intraindividual monocular comparison included visual acuity at various distances, defocus curves, internal total higher-order aberration (HOA), spherical aberration (SA) Z(4.0), IOL decentration and tilt. Additionally, subjective outcomes were evaluated using Halo and Glare simulation and the VF-7 questionnaire.ResultsIn total, 25 patients (50 eyes) were included. Intraindividual monocular BCDVA, DCIVA, and BCNVA were comparable (p> .05). However, monocular contrast acuity (p= .019), DCNVA (p< .001) and defocus curves at defocus levels of 0.0D (p= .005) and between -1.5 and -4.0D (p< .001) differed significantly. At 5mm, internal HOA and SA Z(4.0) were significantly different (p< .001) and comparable at 3mm pupil diameter, as were IOL tilt and decentration (p> .05).ConclusionIn this combined fellow-eye comparison, near vision was significantly better with the trifocal EDOF IOL. The monofocal EDOF IOL demonstrated similar distance and intermediate visual performance as the trifocal EDOF IOL. Overall, low values of photic phenomena and visual impairment was observed.