**SPECIAL ORDER ONLY**
12 prism lenses ing a carry case, suititable for fixation disparity test. AR coated lenses in optical glass with a refratction index of 1.523. This set contains 2 lenses for each prism diopter with different prism inclinations. A reference mark indicates the base (notch) and the vertex (dot) of the prism.
Prism diopter range: 0.25/0.50/ 0.75/ 1.00/1.50/2.00