We asked whether people with different forms of low vision could use motion parallax to improve depth judgements, and how the improvement compared with that of normal subjects. Subjects monocularly viewed 3 vertical cylinders and indicated which one was at a different depth than the other two. For static trials, the viewing assembly was fixed in place. These data were compared to data from normal-vision subjects with a range of simulated deficits in acuity and contrast sensitivity. These findings indicate that motion parallax is a robust depth cue across a wide range of visual deficit.
Motion parallax can provide useful depth information for people with low vision.