Description of A Master Trainer Class for Professionals in Teaching the UltraCane Electronic Travel Device
Electronic travel devices are used to transform information about the environment that would normally be perceived through the visual sense into a form that can be perceived by people who are blind or have low vision through another sense (Blasch, Long, & Griffin-Shirley, 1989). They are divided into two broad categories: primary devices and secondary devices. A primary device is one that a person who is blind may use safely and efficiently by itself, independent of a cane or a dog guide. A secondary device is one that must be used in conjunction with a cane or a dog guide to ensure safe and efficient travel (Farmer, 1980).