ArticleFrontiers in neuroscience2025
The effects of polarization characteristics on visual fatigue: an empirical study based on subjective and objective indicators.
Article in Frontiers in neuroscience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: This study aimed to examine the impact of circularly polarized versus linearly polarized displays on visual health, with a focus on visual fatigue during prolonged screen use. Methods: Eighteen healthy adults participated in a within-subject design. Under controlled illumination and display parameters, participants performed a 40-min standardized visual task. Electroencephalography (EEG) and Vertical electrooculography (VEOG) were recorded concurrently, while subjective questionnaires were administered to assess visual fatigue and alertness. Results: Compared with linearly polarized displays, circularly polarized displays were associated with significantly smaller increases in subjective visual fatigue and smaller declines in alertness (ps < 0.05). Blink rate remained stable under circular polarization but increased significantly under linear polarization and higher than in circular polarization ( Conclusion: Circularly polarized displays, by more closely resembling the optical properties of natural light, can effectively mitigate visual fatigue induced by prolonged screen viewing. These findings provide both theoretical insights and empirical evidence to inform the development of healthier display technologies and ergonomics-related standards.
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