Evaluation of Suitable Rest Times for the Use of Optical Head-Mounted Displays
This study aimed to determine suitable rest times for visual tasks of different lengths by evaluating visual fatigue and visually induced motion sickness while 20 healthy participants were using an optical head-mounted display. The independent variables tested were participant gender, visual task condition (30 min and 60 min), and length of rest time (5 min, 10 min, and 15 min). The critical fusion frequency (CFF) value and simulator sickness questionnaire (SSQ) scores were used as dependent measures. Gender showed no significant effect on CFF values or SSQ scores. Greater CFF values and SSQ scores were produced by the 60-min visual task than the 30-min visual task. The results of this study suggest that after completing a 30-min visual task, a rest time of at least 10 min is necessary for participants to recover, and a rest time of more than 15 min needs to follow a 60-min visual task.
KeywordsOptical head-mounted display Visual fatigue Visually induced motion sickness Critical fusion frequency Simulator sickness questionnaire
- 1.Hsiao, C.Y., Wang, M.J., Lu, Y.T., Chang, C.C.: Usability evaluation of monocular optical head-mounted displays on reading tasks. J. Ambient Intell. Humaniz. Comput., 1–10 (2018)Google Scholar
- 4.Robertson, T., Bischof, J., Geyman, M., Lise, E.: Reducing maintenance error with wearable technology. In: 2018 Annual Reliability and Maintainability Symposium (RAMS), pp. 1–6. IEEE Press (2018)Google Scholar
- 5.Shibata, T., Kim, J., Hoffman, D. M., Banks, M. S.: Visual discomfort with stereo displays: effects of viewing distance and direction of vergence-accommodation conflict. In: Woods, A.J., Holliman, N.S., Dodgson, N.A. (Eds.), Proceedings of SPIE: Stereoscopic Displays and Applications XXII, vol. 7863, pp. 1–9 (2011)Google Scholar
- 7.Du, X., Arya, A.: Design and evaluation of a learning assistant system with optical head-mounted display (OHMD). In: Learning and Collaboration Technologies, pp. 75–86 (2015)Google Scholar
- 17.Häkkinen, J., Vuori, T., Paakka, M.: Postural stability and sickness symptoms after HMD use. In: IEEE International Conference on Systems, Man and Cybernetics, pp. 147–152 (2002)Google Scholar