The Effects of Immersive Virtual Reality Displays on Oculomotor Function
Author | : Robert Mosher (Graduate student) |
Publisher | : |
Total Pages | : 19 |
Release | : 2021 |
Genre | : |
ISBN | : |
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Stereoscopic displays used in current immersive virtual reality (VR) platforms impose unique demands on visual systems that are rarely encountered in natural circumstances. Under normal viewing conditions the visual systems responsible for adjusting focal power and maintaining binocular alignment operate in parallel; however, focal and binocular depth cues experienced in VR are uncoupled due to the fixed focal distance of the display. Subsequently, the accommodative system, which adapts the lens of the eye to meet focal demands, receives static depth feedback, while the vergence system receives continuous binocular cues at varying depths that are frequently incongruent with the display's focal distance. As these conflicting cues have been found to be associated with subjective reports of visual discomfort, we assessed changes in oculomotor function after VR exposure to better understand the underlying processes that may be driving this symptomology. After 30 minutes in immersive VR, participants showed significantly decreased ability to maintain focus on a fixed target over a 2-minute duration using an open field autorefractor when compared to baseline measures.