Topcon’s Auto Refractor/Keratometer with Corneal Mapping Features Performs three functions: auto refraction, keratometry and corneal mapping Topcon’s exclusive rotary prism technology enhances accuracy 10 placido rings enhance precision Corneal mapping measurements out to 10mm Optional software kit for printing out detailed color corneal maps Accurate, reliable measurements down to a pupil size of 2.0mm Scenic fixation chart Topcon’s omni-directional joystick provides one-handed fast, positive and responsive control