The main aim of this study is to understand if an experimental vestibular implant system can improve balance performance. The system consists of a vestibular implant combined with a cochlear implant sound processor and programming software. The implant is designed to preserve hearing in the implanted ear. The vestibular implant is surgically placed under the skin just behind the ear in the mastoid bone and has an electrode that stimulates the vestibular nerve. A sound processor is worn behind the ear and powers the implant via the coil. The study will be conducted in adults with bilateral vestibulopathy (BVP) who have normal to severe hearing loss in the inner ear. The study participants will undergo a series of tests that include evaluations of their balance and hearing and self-reported questionnaires on their balance and general health.
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Change in Dynamic Gait Index (DGI) score from baseline to six months post-activation of the vestibular implant
Timeframe: Baseline (pre-surgery) to 6 months post implantation
Change in Functional Gait Assessment (FGA) score from baseline to six months post-activation of the vestibular implant
Timeframe: Baseline (pre-surgery) to 6 months post implantation