Abstract
In the treatment of cataracts, a procedure is used that replaces the natural lens with an intraocular lens. Among these, multifocal intraocular lenses have multiple focal points, which can improve the patient's quality of life. However, patients with multifocal intraocular lenses may experience issues with how they see lights in dark conditions, such as at night. These issues include the 'halo phenomenon,' where light seems to spread around a point and appear as a ring-shaped haze, the 'glare phenomenon,' where light appears dazzling or glaring, and the 'starburst phenomenon,' where radial lines of light seem to emanate from a point. Although these phenomena are well-known, they are observed subjectively by individuals with intraocular lenses, limiting objective discussion. We are advancing research to recreate these phenomena in a VR space through post-processing in 3D computer graphics. Ultimately, we aim to perform patient-specific post-processing that matches the halo, glare, and starburst phenomena each intraocular lens wearer experiences, in order to objectively assess these phenomena. This report discusses the post-processing capable of reproducing the halo, glare, and starburst phenomena, and considers the application of game-related technology in healthcare, specifically gamification and serious games.
https://ror.org/01gaw2478 
