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Determining Work-Rest Schedules for Visual Tasks That Use Optical Head-Mounted Displays Based on Visual Fatigue and Visually Induced Motion Sickness Recovery

Author

Listed:
  • Chih-Yu Hsiao

    (Department of Industrial Engineering and Engineering Management, National Tsing Hua University, Hsinchu City 30013, Taiwan)

  • Chia-Chen Kuo

    (Department of Industrial Engineering and Management, National Chin-Yi University of Technology, Taichung City 41170, Taiwan)

  • Yi-An Liou

    (Department of Industrial Engineering and Engineering Management, National Tsing Hua University, Hsinchu City 30013, Taiwan)

  • Mao-Jiun Wang

    (Department of Industrial Engineering and Enterprise Information, Tunghai University, Taichung City 40704, Taiwan)

Abstract

This study aimed to determine work-rest schedules for visual tasks of different lengths by evaluating visual fatigue and visually induced motion sickness (VIMS) using an optical head-mounted display (OHMD). Thirty participants were recruited to perform 15 and 30 min visual tasks using an OHMD. After completing each visual task, participants executed six levels of rest time. Critical flicker fusion frequency (CFF) values, relative electroencephalography indices, and Simulator Sickness Questionnaire (SSQ) scores were collected and analyzed. Results indicated that after completing the 15 and 30 min visual tasks, participants experienced visual fatigue and VIMS. There was no significant difference between baseline CFF values, four electroencephalography relative power index values, and SSQ scores when participants completed a 15 min visual task followed by a 20 min rest and a 30 min visual task followed by a 30 min rest. Based on our results, a 20 min rest for visual fatigue and VIMS recovery after a 15 min visual task on an OHMD and a 25 min rest for visual fatigue and VIMS recovery after a 30 min visual task on an OHMD are recommended. This study suggests a work-rest schedule for OHMDs that can be used as a reference for OHMD user guidelines to reduce visual fatigue and visually induced motion sickness.

Suggested Citation

  • Chih-Yu Hsiao & Chia-Chen Kuo & Yi-An Liou & Mao-Jiun Wang, 2023. "Determining Work-Rest Schedules for Visual Tasks That Use Optical Head-Mounted Displays Based on Visual Fatigue and Visually Induced Motion Sickness Recovery," IJERPH, MDPI, vol. 20(3), pages 1-15, January.
    • Handle: RePEc:gam:jijerp:v:20:y:2023:i:3:p:1880-:d:1041447
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    References listed on IDEAS

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    1. Francesca Larese Filon & Anna Drusian & Federico Ronchese & Corrado Negro, 2019. "Video Display Operator Complaints: A 10-Year Follow-Up of Visual Fatigue and Refractive Disorders," IJERPH, MDPI, vol. 16(14), pages 1-12, July.
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