Balance Rehabilitation With Modified Visual Input in Patients With Neuropathy

This research focuses on the effects of rehabilitation on balance, in patients with acquired chronic demyelinating neuropathy. Rehabilitation will be performed with or without vision. It is planned to include 40 subjects consulting for walking instability related to sensitivity disorders. This multicenter study will take place in Paris's area. Each participant will benefit from 20 rehabilitation sessions with a Physical Therapist and 3 assessments. Thanks to randomization, patient will be allocated in one of the 2 following groups: * Control group, Patients will benefit from balance rehabilitation with open eyes. * Experimental group, they will perform the same exercises while keeping their eyes closed or their vision will be obstructed by a mask or disturbed by moving luminous dots projected on the environment in darkness.