Comparative numerical analysis of astigmatism tolerance in bifocal, extended depth-of-focus, and trifocal intraocular lenses.

ABSTRACT: Here, we quantitatively assess the effect of astigmatism on visual functions in eyes with three different commercial multifocal intraocular lenses (IOLs) using a customized finite eye model. Our proposed model implements a full wave analysis of the whole eye structure with diffractive multifocal IOLs under polychromatic conditions. The proposed eye model evaluates the energy efficiency of each focus at varying degrees of corneal astigmatism with the light-in-the-bucket metrics for bifocal (Restor), extended depth-of-focus (Symfony), and trifocal IOLs (POD-F). Better tolerance under astigmatic conditions was observed in the order of Symfony, Restor, and POD-F, highlighting the need to consider multifocal toric IOLs with corneal astigmatism greater than +1.5 D, + 1.0 D, and +1.0 D for Symfon

SUBMITTER: You J 

PROVIDER: S-EPMC11828457 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature