Effect of Display Polarity on Amplitude of Accommodation and Visual Fatigue

Abstract

This study aimed to assess the changes in the amplitude of accommodation under different display polarities and ascertain the effect of display polarities on visual fatigue. Thirty subjects randomly underwent a reading task for 30 minutes with both positive and negative display polarities. The amplitude of accommodation was measured, and subjects were required to complete a subjective symptoms questionnaire; both before and after the reading task. The amplitude of accommodation and visual fatigue symptoms were significantly reduced after the reading task, with both display polarities. Keywords: Display polarity; amplitude of accommodation; visual fatigue eISSN: 2398-4287 © 2023. The Authors. Published for AMER & cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), and cE-Bs (Centre for Environment-Behaviour Studies), College of Built Environment, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/ebpj.v8i24.4611

The Effect of Ambient Illumination and Text Color on Visual Fatigue under Negative Polarity

“…These findings suggest that the benefits of dark mode may depend on specific user characteristics and environments. A recent study [ 9 ] aimed to assess changes in pupil accommodation magnitude across different display polarities, finding that both positive and negative polarity conditions resulted in a significant decrease in pupil accommodation magnitude and an increase in visual fatigue symptoms. This research indicates that prolonged exposure to displays, regardless of polarity, may lead to visual stress.…”