A hearing aid is a small electronic device that is worn behind the ear to amplify some sounds, making it easier for a person with hearing loss to hear and communicate. A hearing aid is made up of three basic parts: a microphone, amplifier and speaker. The microphone receives the sound and sends the converted sound waves to the amplifier. The amplifier then increases the "volume" of the signals and sends them through the speaker.
People who suffer from sensorineural hearing loss can benefit from hearing aids. Sensorineural hearing loss occurs when the small sensory cells of the ear are damaged from aging, disease or an injury from certain medicines or noise.
A hearing aid amplifies the sound entering the ear. The extent of the damage to the sensory cells determines how much amplification is needed to enhance a person's ability to hear. However, there are realistic limits to the level of magnification a hearing aid can provide. If the inner ear has suffered an extensive amount of damage, large vibrations will not be able to be converted into neural signs, making hearing less effective.
What are the different types and styles of hearing aids?
Your hearing professional can recommend one or more types based on factors such as your level of hearing loss, aesthetic preferences, lifestyle needs and budget. Most BTE and RIC styles come in a range of colors and metallic finishes to complement your hair or skin tone.
Invisible-In-The-Canal (IIC)
This custom-fitted style is inserted farther into the ear canal than other styles, so it's completely invisible* when worn. IIC hearing aids are designed to be removed daily to promote good ear health. For mild to moderate hearing loss.
*Individual results may vary. Invisibility may vary based on your ear's anatomy.
Completely-In-Canal (CIC)
CIC hearing instruments are custom-made to fit completely in the ear canal. Only the tip of a small plastic "handle" shows outside the canal, which is used to insert and remove the instrument. For mild to moderate hearing loss.
In-The-Canal (ITC)
ITC hearing instruments are custom-made to fit in the ear canal with a smaller portion of the hearing aid showing in the outer ear. For mild to mildly severe hearing loss.
In-The-Ear (ITE)
ITE hearing instruments are custom-made to fit within the outer portion of the ear. For mild to severe hearing loss.
Receiver-In-Canal (RIC)
Barely visible when worn, the RIC style is an instrument in which the receiver, or speaker, is inside the ear canal. Thin electrical wires are used instead of a plastic acoustical tube, reducing distortion. RIC hearing aids provide a comfortable, open fit. For mild to moderate hearing loss.
Behind-The-Ear (BTE)
The hearing technology is housed in a casing that rests behind the ear. A clear plastic acoustical tube directs amplified sound into an earbud or a customized earmold that is fitted inside the ear canal. For moderate to severe hearing loss.