This may be associated with the fact that exercises performed by each patient were supervised by a physiotherapist and home exercises were strictly controlled. The patients were trained to better use somatosensory and visual inputs for pos- tural control in situations where the sensory infor- mation was available or to maximize the use of the reduced vestibular information that was available to them. Therefore it is reasonable to expect unilateral or bilateral vestibular failure to respond vestibular rehabilitation equally