Lead Sponsor

Cochlear

Age

18 - No limit years

Sex

ALL

Healthy Volunteers

No

•Patients who are receiving a Nucleus® CI512, CI522, or CI532 electrodes
•18 years and older
•Postlingual onset of hearing loss (onset of hearing loss \>two years of age)
•Individuals who qualify for cochlear implantation using the clinics current CI candidacy criteria
•Individuals who have recently been implanted but not yet had their external device activated
•Willingness to participate in a study and comply with all study requirements
•Fluent in spoken English

•Ossification or any other cochlear anomaly that might prevent insertion of less than 10 electrodes of the electrode array
•Diagnosis of retro-cochlear pathology
•Diagnosis of auditory neuropathy
•Subject considering an acoustic component in the implanted ear
•Unrealistic expectations on the part of the subject regarding the possible benefits, risks, and limitations that are inherent to the surgical procedure and use of the prosthetic device
•Unwillingness or inability to comply with all investigational requirements
•Severe-profound sensorineural hearing loss \>30 years
•Previous cochlear implant in the contralateral ear. Additional cognitive, medical or social handicaps that would prevent completion of all study requirements as determined by the investigator