Measuring the likelihood of VR visual fatigue through ocular biomechanics |
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Affiliation: | 1. The School of Electrical and Information Engineering, Tianjin University, 300072, China;2. Alibaba Group, Hangzhou 310052, China;1. Defence Research and Development Canada, Toronto Research Center, Toronto M3K 2C9, Canada;2. Visualization and Simulation Center, Carleton University, Ottawa, Ontario K1S 5B6, Canada;1. Defence Research & Development Canada – Toronto Research Centre, 1133 Sheppard Avenue West, Toronto, Ontario M3K 2C9, Canada;2. Canadian Forces Health Services, 3500 Carling Ave, Ottawa, ON K2H 8E9, Canada.;1. Department of Physical Therapy, Graduate School of Kyungnam University, 7 Kyungnamdaehak-ro, Masanhappo-gu, Changwon, Gyeongsangnam-do 51767, Republic of Korea;2. Department of Physical Therapy, Kyungnam University, 7 Kyungnamdaehak-ro, Masanhappo-gu, Changwon, Gyeongsangnam-do 51767, Republic of Korea;1. Department of Biomedical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China;2. Department of Bioengineering, Rice University, Huston, TX 77005, USA;3. School of Biological Science & Medical Engineering, Southeast University, Nanjing 210096, China |
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Abstract: | Immersion in virtual reality is still linked to symptoms of visual fatigue such as eye strain, dizziness, and overall discomfort. Studies have investigated visual fatigue through pre- and post-immersion tests of the visual function. In this work, we extend on our previous study and derive a visual fatigue likelihood metric using biomechanical analysis. Previously, we have investigated the effect of VR on the vergence system during immersion. The proposed visual fatigue metric exhibited a significant correlation to vergence angle variability which was previously linked to vergence accommodation conflict in VR. We also discuss subjective feedback and its relationship with the proposed visual fatigue metric. |
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Keywords: | Visual fatigue Ocular Biomechanics Eye movement Neural control Extraocular muscles |
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