• The TS-310 is a tabletop subjective refraction system that integrates chart and refractor into a single unit. NIDEK's recognized quality examination is embodied in a new, groundbreaking design that redefines the conventional refraction systems and significantly minimizes the examination footprint. Compact design enables easy installation and office assimilation, while the stylish shape complements the progressive image of your facility. The TS-310 fulfills the need for simple and reliable refraction, in an attractive design, wherever space limitations exist.