Any person with a moderately severe to profound degree of hearing loss of a sensorineural nature (in the inner ear or cochlear) in one or both ears might be a possible candidate for a cochlear implant. In most cases, the person must have trialled hearing aids unless the hearing loss is severe enough not to be fitted with a hearing aid. There is no lower or upper age limit. An audiological and medical assessment will review the integrity of the nerve, and expectations will be discussed, depending on the hearing and amplification history provided during the assessment.