Receiving an EAS
Hearing Implant System

The EAS™ Hearing Implant System is specially designed for individuals with partial deafness. Partial deafness is defined as a mild to moderate, low-frequency sensorineural hearing loss sloping to a profound hearing loss in the higher frequencies.

Candidates for an EAS Hearing Implant System undergo audiological tests and medical examinations to determine whether EAS is a suitable treatment for them. The audiological tests assess the degree of hearing loss both in low and in high frequencies.


The internal part of an EAS Hearing Implant System, the cochlear implant with an especially flexible FLEXEAS Electrode Array, is implanted under the skin behind the ear. The FLEXEAS Electrode Array is inserted into the cochlea by the surgeon. The surgery is a routine procedure for experienced ENT surgeons and usually takes one to three hours. Your surgeon will advise you concerning any additional details of the surgery.

For a list of experienced surgeons please visit our Clinic Finder.

Activation of the EAS Hearing Implant System
Between two and six weeks following implantation, both the electric stimulation and the acoustic amplification of the EAS Hearing Implant System are activated. An initial period of adaptation to the combined stimulation is common and should be expected.

If you would like to be referred directly to an EAS centre or would like more information on the EAS Hearing Implant System, please contact MED-EL directly. 

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