Hearing aids
Hearing aids
Hearing aids (/ˈhɪərɪŋ eɪdz/) are devices designed to improve hearing by making sound audible to a person with hearing loss.
Etymology
The term "hearing aid" is derived from the English words "hearing," which means the faculty of perceiving sounds, and "aid," which means to assist or support.
Definition
Hearing aids are small electronic devices that you wear in or behind your ear. They make sounds louder so that a person with hearing loss can listen, communicate, and participate more fully in daily activities.
Types of Hearing Aids
There are several types of hearing aids, including:
- Behind-the-ear (BTE): These hearing aids hook over the top of your ear and rest behind the ear. A tube connects the hearing aid to a custom earpiece called an earmold that fits in your ear canal.
- In-the-ear (ITE): These are custom-made devices, all parts of which fit in the ear of the wearer.
- In-the-canal (ITC): These are custom-made devices, some parts of which fit in the canal of the ear.
- Completely-in-canal (CIC): These are custom-made devices, all parts of which fit in the canal of the ear.
Related Terms
- Audiologist: A healthcare professional who is trained to evaluate hearing loss and related disorders, including balance (vestibular) disorders and tinnitus, and to rehabilitate individuals with hearing loss and related disorders.
- Cochlear implant: A surgically implanted electronic device that provides a sense of sound to a person who is profoundly deaf or severely hard of hearing.
- Tinnitus: The perception of noise or ringing in the ears.
- Audiogram: A graph that shows the audible threshold for standardized frequencies as measured by an audiometer.
- Audiometer: A machine used for evaluating hearing acuity.
External links
- Medical encyclopedia article on Hearing aids
- Wikipedia's article - Hearing aids
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