What is the difference between a hearing aid and a cochlear implant?
Hearing aids and cochlear implants are common means of helping hearing impaired people regain their hearing, but most people are not aware of the difference between the two. Let us find out.
1.Different mechanism of action and scope of application
The hearing aid is an electroacoustic amplifier that amplifies the sound that could not be heard by the hearing-impaired patient to the intensity that can be heard, as if a “magnifying glass” was placed on the ear. In principle, it is inferred that the use of the hearing aid is based on the requirement that the patient’s residual hearing can hear the amplified sound. However, the amplification power of the hearing aid is limited. Therefore, the main use of hearing aids is moderate and partial severe deafness patients. If the remaining hearing in both ears is severe or very severe hearing loss, then the hearing aid is ineffective and needs to be assisted by a cochlear implant.
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