Wesson Fixation Disparity Card
By Michael D. Wesson, O.D., M.S.
The Wesson Fixation Disparity Card is designed to give quick, accurate estimates of a number of important parameters of fixation disparity. Portable, plastic-covered card offers a free space technique with no phoropter necessary. Instructions for use, cardboard Polaroid glasses and MEM measurement included.
Available on backorder