This stylish time saving instrument uses the latest technology to rapidly introduce lens changes while you are working comfortably from a seated position. No more shoulder pain at the end of the day! The CDR-3100 can be programmed to memorize several exam routines to accommodate multiple users. The CDR-3100 performs well as a stand-alone unit, or as part of the DRS-3100, our complete Digital Refraction System designed to increase your speed and efficiency. Features 6 different types of phoria tests 3 different types of binocular balance tests 2 different ways to refine cylinder axis and cylinder power 5 different sets of charts 10 different types of user defined programs 35 different types of user defined tests Graphical Guide: easy-to-understand diagrams Multiple function keys Multiple print formats Comparing Results Separate Phoria Display Fields Click here --> to view a Power Point presentation File size 1 Meg Click here --> to download the brochure