Cochlear Implants: An Introduction


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PDF icon Cochlear Implants: An Introduction  ( English | Spanish )

Cochlear implants are complex electronic devices surgically implanted under the skin behind the ear. These devices use electrodes placed in the inner ear (the cochlea) to stimulate the auditory nerve of individuals who have significant permanent hearing loss.

Cochlear implants offer more benefits to some recipients than to others. It is difficult to predict how well any individual's brain will be able to interpret the new auditory signals it is receiving with the implant. Additionally, not all types of hearing loss can be addressed by cochlear implants.