A disparity analysis of some horopter data.

A form of binocular disparity analysis has been applied to some grid nonius, apparent frontoparallel plane, diplopia limit, and binocular nonius data from studies by Ogle and Ames et al. The results show that all horopter criteria are capable of detecting fixation disparity and indicate that the apparent frontoparallel plane can change shape and position as a result forced vergences. The effect of size lenses, plus lenses, and fixation distance are discussed. A comparison between the disparity analysis of partition data and horopter data is presented.