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Frequently
Asked Questions
Why
Are Hearing Aids So Expensive?
The
cost of hearing aids is a very important factor in determining what
type of hearing aid is best for you as a patient. The fact is a
standard linear in-the-ear hearing instrument cost $500 (per ear)
in 1974 and that same hearing aid is still $500 today! But we now
have new technology that gives you improved sound quality. This
new technology includes programmable instruments and improvements
to linear technology. These advancements cost the manufacturer money
for research and development, costs that are passed along to the
consumer. This is one reason hearing aids have increased in costs.
Another reason is the size of the hearing aid. Today there are four
main sizes or styles of hearing aids. Two have been around for many
years, they are behind-the-ear and the in-the-ear models. They are
usually for people with severe to profound hearing loss. Two smaller
sizes have been introduced since the 1980s. They are in-the-canal
and the completely-in-the-canal models.They are much smaller and
less noticeable than their predecessors. These two models are for
patients with mild to severe hearing loss. These use smaller components
and therefore cost more to develop than the larger styles. A third
reason is trial periods. Some doctors and dispensers as well as
audiologists offer trial periods for their hearing aids. (Approximately
20-25%) This will also raise the cost of hearing aids. The federal
government, the Food and Drug Administration (FDA), classifies the
hearing aid as a prosthetic device. Therefore, once an in-the-ear
hearing aid has been worn by a patient, it can no longer be used
for any other patient. When a hearing aid is worn on a trial basis,
if the patient decides he/she doesn't want the aid, it must be destroyed.
These returned aids increase manufacturing costs, thus increasing
the cost to the consumer.
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How
Long Should I Wait Before I Do Something About My Hearing Loss?
Don't
wait! Take action now! The longer a person waits to do something
about a hearing loss, the longer it will take to re-train the brain
to process sounds. Keep in mind, the brain processes the signals
it receives from the ears. If the signal is weakened from a hearing
loss, the brain stops processing certain sounds. It then takes time
to re-train the brain again to reprocess these sounds.
Most
people complain that it is difficult to hear when there is background
noise. This is because of the type of hearing loss they experience.
A high frequency hearing loss causes difficulty in separating speech
from noise. The longer a person waits to get help for this hearing
loss, the more difficult time they have learning again to separate
speech from noise.
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Should
I Get One or Two Hearing Aids?
We
hear with the brain and not the ears. The brain is wired to receive
input from both ears. Assuming you have a loss in both ears, two
hearing aids should be selected for the following reasons: You need
less power when you wear two hearing aids. Stereo listening gives
depth perception. Two ears gives us the ability to localize where
sounds are coming from (which may keep us out of harm's way)! Better
understanding requires both ears. Two ears hear better in noise.
What
Causes a Hearing Loss?
The
majority of hearing losses are a result of aging, called presbycusis.
Other causes: prolonged exposure to loud noises, certain types of
illness, ototoxic medications, heredity, middle ear pathology or ear wax.
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I
Can Hear, But Why Don't I Understand?
For most people
hearing loss occurs gradually and affects the high frequencies first.
Because of this, clarity of speech is hindered and our brains no
longer receive a clear signal from the ears.
Speech consists
of vowel and consonant sounds. Vowel sounds carry 95% of the sound
energy in speech. These sounds are low pitch and they let the brain
know someone is talking. However, only 5% of speech intelligibility
comes from these vowel sounds. Consonant sounds are higher pitch,
carry 5% of speech energy, but contain 95% of speech intelligibility.
Again the majority of individuals with hearing loss have a loss
in the high pitches. Therefore they are missing many consonant sounds
in speech and they report that most people sound like they mumble
when they talk. The more background or competing noise these individuals
encounter, the more difficult comprehension becomes.
The best situation
in which to listen and understand occurs when three key elements
are in harmony. These elements are the speaker, the environment,
and the listener. If the speaker, or we as the listener, are
not ready to perform the task, are having a bad day, are tired,
not feeling well, etc. all of these aspects affect our performance
as listeners or speakers. If the environment we are in is a large
room, a small room, has a lot of hard surfaces, has carpet, is
outside, etc., the signal reaching the ears and being processed
by the brain is also affected.
It is vital
that we do everything to ensure as clear a signal as possible is
transmitted from the ears to the brain. However, if our ears are
no longer functioning as they once did, we need to take measure
to correct the problem. For many this includes being fit with the
proper hearing instruments following a complete diagnostic hearing
evaluation.
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