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

Appl Opt. 2014 Oct 10;53(29):H76-84. doi: 10.1364/AO.53.000H76.

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Accommodation, Ocular*
  • Adult
  • Asthenopia / physiopathology*
  • Color
  • Data Display*
  • Equipment Design
  • Equipment Failure Analysis
  • Female
  • Humans
  • Imaging, Three-Dimensional / instrumentation
  • Imaging, Three-Dimensional / methods
  • Lasers*
  • Liquid Crystals*
  • Male
  • Photic Stimulation / instrumentation*
  • Photic Stimulation / methods
  • Task Performance and Analysis
  • Visual Perception*