Hi-Vex FSV
HI-VEX S/F Progressive Lens (Short Corridor)

Company quality assurance system, strict control of the production process. The production process to have independent test: the production process in accordance with standards of practice each process requires each to operate on the major steps in the process provided an important process and must be independently tested. Also have the process of inspection: the production process, quality control department of the lens refraction, thickness inspection