Research of accommodative microfluctuations caused by visual fatigue based on liquid crystal and laser displays

Wei De Jeng, Yuan Ouyang, Ting Wei Huang, Jeng-Ren Duann, Jin-Chern Chiou, Yu Shun Tang, Yang-Mang Ou*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Different levels of visual fatigue in the human eye depend on different color-formation methods and image quality. This paper uses the high-frequency component of the spectral power of accommodative microfluctuations as a major objective indicator for analyzing the effects of visual fatigue based on various displays, such as color-formation displays and 3D displays. Also, a questionnaire is used as a subjective indicator. The results are that 3D videos cause greater visual fatigue than 2D videos (p < 0.001), the shutter-type 3D display causes visual fatigue more than the polarized type (p = 0.012), the display of the time-sharing method causes greater visual fatigue than the spatial-formation method (p = 0.008), and there is no significance between various light source modules of displays (p = 0.162). In general, people with normal color discrimination have more visual fatigue than those with good color discrimination (p < 0.001). Therefore, this paper uses the high-frequency component of accommodative microfluctuations to evaluate the physiological stress or strain by overexerting the visual system, and can compare the level of visual fatigue between various displays.

Original languageEnglish
Pages (from-to)H76-H84
JournalApplied Optics
Volume53
Issue number29
DOIs
StatePublished - 10 Oct 2014

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