Field testing of two electronic mobility aid devices for persons who are deaf-blind.

Purpose: To test a methodology for assessing the effects of electronic mobility aid devices (EMAD) on the mobility of persons who are deaf-blind in real-life situations.

Method: A single-subject desing was done with four users followed in a program for persons who are deaf-blind. Participants were trained to use two commercial EMADs: the Miniguide and the Breeze.