Many people cannot see depth in stereoscopic displays. These individuals are often highly motivated to recover stereoscopic depth perception, but because binocular vision is complex, the loss of stereo has different causes in different people, so treatment cannot be uniform. We have created a virtual reality (VR) system for assessing and treating anomalies in binocular vision. The system is based on a systematic analysis of subsystems upon which stereoscopic vision depends: the ability to converge properly, appropriate regulation of suppression, extraction of disparity, use of disparity for depth perception and for vergence control, and combination of stereoscopic depth with other depth cues. Deficiency in any of these subsystems can cause stereoblindness or limit performance on tasks that require stereoscopic vision. Our system uses VR games to improve the function of specific, targeted subsystems.
Benjamin T. Backus, Brian D. Dornbos, Tuan A. Tran, James B. Blaha, Manish Z. Gupta, "Use of virtual reality to assess and treat weakness in human stereoscopic vision" in Proc. IS&T Int’l. Symp. on Electronic Imaging: Stereoscopic Displays and Applications XXIX, 2018, pp 109-1 - 109-6, https://doi.org/10.2352/ISSN.2470-1173.2018.04.SDA-109