Professor Manohar Bance, Professor of Otology and Skull Base Surgery at the University of Cambridge, believes the future of hearing restoration will increasingly lie at the intersection of cochlear implants, biology, gene therapy and neurotechnology.
Moving Beyond the Limitations of Cochlear Implants
Cochlear implants have transformed hearing for many patients, but they still do not replicate natural hearing. Challenges remain in complex listening environments, including background noise, reverberant spaces, music and tonal languages.
A major opportunity is therefore improving the interface between the implant and the auditory nerve. Emerging approaches include reducing inflammation and fibrosis around implants, preserving residual hearing and encouraging nerve fibres to grow closer to electrodes.
Gene Therapy Becomes a Reality
Gene therapy is also beginning to change what may be possible in inherited hearing loss.
Bance highlighted early progress targeting OTOF-related hearing loss, demonstrating that gene therapy can restore aspects of hearing biology with encouraging results. However, expanding this success to more common genetic causes will be more challenging, particularly where cells have already degenerated.
Questions also remain around regeneration, long-term durability, safety, cost and how these potentially transformative therapies can be made accessible to patients at scale.
Bringing Biology and Electronics Together
Rather than viewing cochlear implants and biological therapies as competing technologies, Bance sees increasing potential to combine them.
Future bioelectronic devices could integrate cells, biological therapies and softer electronics to interact more naturally with the inner ear. Meanwhile, computational modelling and digital-twin approaches could help researchers better understand how electrodes behave within complex biological environments.
The direction of travel is clear: electronics alone may not provide the complete answer, and biology alone may not either. Bringing the two together could unlock the next generation of hearing restoration.
