What are the most common types of hearing
loss?
Although there are many TYPES of hearing loss,
the most common type is SENSORINEURAL (also called
"cochlear" or "inner ear"
or "nerve loss"). The second commonest
type is CONDUCTIVE. Other types of hearing loss
include; mixed and central.
When the problem is in the inner ear, the most
common - sensorineural hearing loss - occurs.
More than 90 percent of all hearing aid wearers
have sensorineural hearing loss. The most common
causes are; age related changes, noise exposure,
inner ear blood circulation, inner ear fluid disturbances
and problems with the hearing nerve.
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Conductive hearing loss occurs when sound is not conducted efficiently through
the ear canal, eardrum or the tiny bones of the middle
ear, resulting in a reduction of loudness of sound.
Conductive loss may result from earwax blocking the
ear canal, fluid in the middle ear, middle ear infection,
obstructions in the ear canal, perforations (hole) in
the eardrum or disease of any of the three middle ear
bones.
People with conductive hearing loss may notice their
ears seem to be blocked. This person may speak softly
because they hear their own voice loudly. Chewing crunchy
foods seems very loud to the person with a conductive
hearing loss and this person may have to stop chewing
to hear what is being said. All conductive hearing losses
should be evaluated by an audiologist and a physician
to explore medical and surgical options.
To demonstrate a conductive hearing loss, gently and
safely close your ears with your fingers. This will
give you the feeling of a conductive hearing loss…you’ll
feel plugged-up, and you’ll feel a little hearing
impaired. Interestingly, some people may tell you they
don’t need hearing aids because they ONLY have
a 30 decibel hearing loss. However, assuming you have
normal hearing, when you plug your ears with your fingers,
you’ll experience approximately a 25 decibel hearing
loss – and you’ll quickly realize that even
a VERY MILD hearing loss is quite irritating and disconcerting!
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