Affiliations: [a] Department of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan | [b] Department of Optometry, Jen-Teh Junior College of Medicine, Nursing and Management, MiaoLi, Taiwan | [c] Department of Electornic Engineering, National Yunlin University, Yunlin, Taiwan | [d] Department of Medical Laboratory and Biotechnology, Chung Shan Medical University, Taichung, Taiwan
Correspondence:
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Corresponding author: Yu-Shuo Chang, Department of Optometry, Jen-Teh Junior College of Medicine, Nursing and Management, MiaoLi 356, Taiwan. E-mail:yushuochang@gmail.com
Abstract: Visual fatigue is commonly encountered in modern life.
Clinical visual fatigue characteristics caused by 2-D and 3-D animations may
be different, but have not been characterized in detail. This study tried to
distinguish the differential effects on visual fatigue caused by 2-D and 3-D
animations. A total of 23 volunteers were subjected to accommodation and
vergence assessments, followed by a 40-min video game program designed to
aggravate their asthenopic symptoms. The volunteers were then assessed for
accommodation and vergence parameters again and directed to watch a 5-min
3-D video program, and then assessed again for the parameters. The results
support that the 3-D animations caused similar characteristics in vision
fatigue parameters in some specific aspects as compared to that caused by
2-D animations. Furthermore, 3-D animations may lead to more exhaustion in
both ciliary and extra-ocular muscles, and such differential effects were
more evident in the high demand of near vision work. The current results
indicated that an arbitrary set of indexes may be promoted in the design of
3-D display or equipments.
