How does a cochlear implant device work?
Hearing loss normally occurs when the hair cells responsible for hearing degrade over time. Unlike a hearing aid, which amplifies sound waves through your inner ear cells, a surgically placed cochlear implant bypasses the hair cells and delivers sound directly to your hearing nerve. The sound signal travels from the hearing nerve to the brain, where the sound is identified.
Cochlear implant sound may not be quite as “natural” as normal hearing, but with time most people experience significantly improved sound awareness and language understanding.