Abstract
Cataract treatments often involve replacing the lens with an intraocular lens. In particular, multifocal intraocular lenses, which offer multiple points of focus, can potentially improve patients' quality of life. However, patients with multifocal intraocular lenses may experience visual disturbances in low light conditions, such as at night, referred to as the halo and glare phenomena. Specifically, these include the 'halo phenomenon,' where light seems to spread around a point of light, giving the appearance of a ring-shaped haze, and the 'glare phenomenon,' where light appears to flicker or be excessively bright. These phenomena are well-known but are typically observed through the subjective vision of intraocular lens wearers, limiting objective discussions.
Our research is advancing towards the reproduction of these phenomena in a virtual reality (VR) environment using post- processing in 3D computer graphics (3DCG). Ultimately, our goal is to individually customize the post-processing to match the halo and glare phenomena experienced by each intraocular lens wearer. Through this, we aim to establish an objective evaluation of the halo and glare phenomena. In this paper, as the first step of our research, we report on post-processing that can successfully reproduce the halo and glare phenomena.
https://ror.org/01gaw2478 
