Comparative Outcomes of the Next-Generation Extended Depth-of-Focus Intraocular Lens and Enhanced Monofocal Intraocular Lens in Cataract Surgery

Abstract

Background/Objectives: A new, purely refractive extended depth-of-focus (EDOF) intraocular lens (IOL) was designed with a continuous change in power to bridge the gap between monofocal and multifocal IOLs. This study aimed to evaluate the real-world clinical outcomes of the new EDOF IOL compared with those of the enhanced monofocal IOL. Methods: A retrospective analysis was conducted on 100 eyes from 50 patients undergoing bilateral cataract surgery with either the PureSee (TM) EDOF (ZEN00V) or Eyhance (TM) (ICB00) monofocal IOL at a single institution. Visual acuity, defocus curves, contrast sensitivity, and patient-reported outcomes were evaluated three months postoperatively. Results: The ZEN00V group demonstrated superior uncorrected intermediate (0.11 +/- 0.08 vs. 0.17 +/- 0.11 logMAR, p = 0.006) and near visual acuity (0.25 +/- 0.08 vs. 0.31 +/- 0.13 logMAR, p = 0.023) compared to the ICB00 group, with comparable distance visual acuity. Both groups exhibited comparable defocus curves and contrast sensitivity. While photic phenomena were more frequent in the ZEN00V group, spectacle dependence was significantly lower for near vision (36% vs. 80%, p = 0.002) and comparable for intermediate and far vision. Conclusions: The PureSee (TM) EDOF IOL demonstrated enhanced intermediate and near vision with minimal compromise to distance vision while maintaining high contrast sensitivity. It also offered significant spectacle independence and patient satisfaction, making it a promising option for presbyopia correction.