The leading symptoms of bilateral vestibulopathy (BVP) are postural imbalance and
unsteadiness of gait that worsens in darkness and on uneven ground. There are typically no
symptoms while sitting or lying under static conditions. A minority of patients also have
movement-induced oscillopsia, in particular while walking. The diagnosis of BVP is based
on a bilaterally reduced or absent function of the vestibulo-ocular reflex (VOR). This deficit is
diagnosed for the high-frequency range of the angular VOR by a bilaterally pathologic …