Transcript Noise Induced

Hearing Loss
Your Ear

Outer Ear


Middle Ear


Pina, Ear Canal, Ear
Drum
Hammer, Anvil, Stirrup
Inner Ear

Cochlea, Cilia, Auditory
Nerve, Eustachian Tube
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Diagram of the Ear
How the process works

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Sound waves enter
Cause vibration
Cause movement
Cause fluid waves
Stimulate nerve endings
Send messages to the brain
Types of Hearing Loss
Conductive Loss
Causes of Conductive Loss can be
medically treated

Outer:
 Wax
Buildup,
 Foreign Body
Blockage
 Swimmer Ear
 Development
defect

Middle:
 Perforation
of
drum
 Pressure
 Ear Infection
Sensory Nueral Loss
Inner Ear-most common type of loss
Permanent;
-can not repair damage
Causes of Sensory-Neural Loss
 Noise
Induced
 Accidents
 Age
 Medicine
 Genetics/Heredity
 Drugs
 Illness
 Genetic
Syndrome
Noise Induced
MOST PREVENTABLE!
Watch: Wild tour of the ear-how noise damages hearing and
Preventative Measures for
noise induced sensory-neural loss

1)Protective Ear Wear
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2)Turn down the volume

3)Avoid noisy/loud situations
Sound: vibrations that travel in waves
Frequency:
-how fast vibrations travel. Hertz (Hz)
-slower the wave the lower the pitch
-faster the wave the higher the pitch
250
500
1000
2000
4000
8000
HIGH PITCH
125
FREQUENCY IN CYCLES PER SECOND (HZ)
Intensity
-how loud the sound is. Decibels (dB)
-bigger the wave, louder the sound
-smaller the wave, softer the sound
0
HEARING LEVEL (dB HL)
10
SOFT
20
30
40
50
60
70
80
90
100
110
120
LOUD
125
250
500
1000
2000
4000
8000
0
10
HEARING LEVEL (dB HL)
20
z v
f th
s
p
h
30
ch
40
50
j mdb
n
ng
e i
u
l
o ar
g
sh
60
70
80
90
100
110
120
AUDIOGRAM OF FAMILIAR SOUNDS
FREQUENCY IN CYCLES PER SECOND (HZ)
250
500
1000
2000
4000
8000
0
10
HEARING LEVEL (dB HL)
20
30
40
50
60
70
80
90
100
110
120
125
AUDIOGRAM OF FAMILIAR SOUNDS
FREQUENCY IN CYCLES PER SECOND (HZ)
125
0
10
250
500
1000
2000
4000 80 8000 00
4000
NORMAL HEARING
HEARING LEVEL (dB HL)
20
30
40
50
60
70
80
90
100
110
120
AUDIOGRAM
FREQUENCY IN CYCLES PER SECOND (HZ)
125
250
500
1000
2000
4000 80 8000 00
4000
0
10
HEARING LEVEL (dB HL)
20
30
MILD
40
50
60
70
80
90
100
110
120
AUDIOGRAM
FREQUENCY IN CYCLES PER SECOND (HZ)
125
250
500
1000
2000
4000 80 8000 00
4000
0
10
HEARING LEVEL (dB HL)
20
30
40
50
60
MODERATE
70
80
90
100
110
120
AUDIOGRAM
FREQUENCY IN CYCLES PER SECOND (HZ)
125
250
500
1000
2000
4000 80 8000 00
4000
0
10
HEARING LEVEL (dB HL)
20
30
40
50
60
70
80
SEVERE
90
100
110
120
AUDIOGRAM
FREQUENCY IN CYCLES PER SECOND (HZ)
125
250
500
1000
2000
4000 80 8000 00
4000
0
10
HEARING LEVEL (dB HL)
20
30
40
50
60
70
80
90
100
110
PROFOUND
120
AUDIOGRAM
FREQUENCY IN CYCLES PER SECOND (HZ)
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People with hearing loss have different
degrees of loss in various frequencies.
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They may have normal hearing in certain
frequencies and moderate to severe in other
frequencies.
Brain Fills the Gaps
I
thought I understood something
but, in fact, I didn't.

I've begun to realize that
misunderstanding is an active
process — that my brain fills in
the missing pieces that I didn't
hear.
Communicating Strategies
for with a person who has a
hearing loss

Do’s
1. Speak clearly
2. Look directly at the person
3. If saying it one way does not work,
rephrase it
4. facial expression tell a great deal
5. Use paper and pencil
6. If they are deaf, ask the person how
they want to interact (sign language,
speech, lipreading, pen/paper….)
Don’ts
1. Don’t speak to a person with a your
back to a light, window, or mirror
2. Don’t put objects in your mouth or
cover your mouth when speaking
3. Don’t exaggerate your lip movements
4. Don’t pretend to understand