Wesson Fixation Disparity Card

The Wesson Fixation Disparity Card features measurements such as horizontal and vertical fixation disparity, associated phoria, and forced vergence fixation disparity curves used for fixation typing and the effects of visual therapy. In addition, accommodative lag may be measured with the high frequency and very low-frequency targets.

This kit includes a fixation disparity card, polarized glasses, instructions, a pad of 25 sheets of the vergence graph, and a storage box.