Comparison of Near-Distance Reading Speed Based on the Intraocular Lens Type Using a Korean Reading Speed Measurement Application

Abstract

Purpose: To compare near-distance reading speeds across different intraocular lens (IOL) types using a Korean reading speed measurement application.Methods: Patients who underwent bilateral cataract surgery and received trifocal IOL (Panoptix), extended depth of focus (EDoF) IOL (Vivity), or enhanced monofocal IOL (Eyhance) were enrolled. Korean reading speed and reading & speaking speed were measured using a Korean reading speed measurement application. Additionally, satisfaction with visual function in everyday life was assessed using a questionnaire.Results: No statistically significant differences were observed in postoperative corrected distance visual acuity among the three groups (<i>p</i> = 0.71). The Panoptix group demonstrated significantly higher distance-corrected near visual acuity than the other two groups (<i>p</i> < 0.05). For letter sizes of logMAR 0.5 or larger, the Panoptix group exhibited significantly higher reading and reading & speaking speeds than the other two groups. For letter sizes of logMAR 0.8 or larger, the Vivity group showed significantly higher reading and reading & speaking speeds than the Eyhance group (<i>p</i> < 0.05). The Panoptix group showed significantly greater satisfaction with visual function in work at near distances, including that for activities such as reading a book.Conclusion: The Panoptix trifocal IOL is expected to provide superior near-vision function and patient satisfaction than other IOL types.