Both light and dark modes contribute to eye strain after tablet use, but dark mode may slightly reduce dry eye symptoms and preserve visual function better than light mode, according to a study.
The study included 30 female participants who used tablets in both light and dark modes, with eye-related symptoms measured before and after each session.
Although no significant difference in overall visual fatigue was found between the display modes, dark mode showed advantages in reducing dry eye symptoms and changes in critical flicker frequency. Regardless of mode, all participants experienced increased visual fatigue, dry eye symptoms, and reduced flicker sensitivity after tablet use.
Researchers concluded that although both display settings influence eye health, dark mode may offer slight protective benefits. They recommend further studies to evaluate long-term effects and refine screen settings for better visual well-being.
Reference
Sengsoon P, Intaruk R. Immediate Effects of Light Mode and Dark Mode Features on Visual Fatigue in Tablet Users. Int J Environ Res Public Health. 2025;22(4):609. doi: 10.3390/ijerph22040609. PMID: 40283833; PMCID: PMC12027292.
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