Scientists from King's College London, the Karolinska Institute, and Erasmus University have recently discovered ten additional genes connected to hearing loss, and located the part of the ear affected.
The results, which were published in the American Journal of Human Genetics on May 16th, 2022, put doubt on the notion that age-related hearing loss is primarily caused by sensory hair cells. The stria vascularis, a region of the cochlea in the ear, is a new target for medicines to aid patients with hearing loss, according to researchers.
New Hope for Hearing Loss Treatment: Researchers Identify 48 Genes Linked to Hearing Loss
Found this and thought it was interesting. It seems that for some people it isn't a question of regenerating or reviving hair cells to bring hearing back.