Suffer from Hearing Loss That is over 4 times the amount of people living in New York City Over 18 million Americans who suffer from hearing loss are younger than 65 Over 5 million children and young adults under the age of 18 suffer from ID: 774653
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Slide1
Slide2Over 36 million Americans Suffer from Hearing Loss!
That is over 4 times
the amount of people living in New York City!
Slide3Over 18 million Americans who suffer from hearing loss are younger than 65
Over 5 million children and young adults under the age of 18 suffer from
Noise-Induced Hearing Loss.
Slide4Noise-Induced Hearing Lossor NIHL is on the rise in America.Our ears are exposed to higher levels of noise more today than ever before.
This hearing loss is:
Permanent
100% Preventable
Can occur at any age!
Slide5How We Hear: Outer Ear
The outermost part of the ear is called the pinna. The pinna acts like a funnel directing sound waves into the ear canal.The sound waves then travel through the ear canal to the ear drum.The sound waves vibrate the ear drum and the vibrations are transmitted to the middle ear.
Slide6How We Hear: Middle Ear
The middle ear is made up of the hammer, anvil, and stirrup bones.These three bones are the smallest in the body and are collectively known as the ossicles. The ossicles amplify and transfer the sound vibrations from the ear drum to the inner ear.
hammer
anvil
stirrup
Slide7How We Hear: Inner Ear
The inner ear is made up of the semicircular canals and the cochlea.Each part of the inner ear is very different in form and function to the human body.
semicircular canals
cochlea
Slide8Inner Ear: Semicircular Canals
The semicircular canals are the portion of the ear that helps detect movement and maintain balance.The semicircular canals are filled with fluid, and as we move, it is that fluid that allows us to detect the movement and maintain our balance.
semicircular canals
Slide9Inner Ear: The Cochlea
The cochlea houses the organ of Corti.As sound vibrations move through the cochlea, they vibrate the microscopic hair cells found within the organ of Corti. The vibrations of these hair cells trigger the electrical impulses sent to the brain from the auditory nerve, allowing us to hear.
From David J. Lim. Functional Structure of the Organ of Corti: A Review. Hearing Research, 22 (1986) 117-146 Elsevier
cochlea
auditory nerve
Slide10NIHL (Noise-Induced Hearing Loss) Hearing loss as a result of prolonged or sudden exposure to loud noise.
When our ears are exposed to levels of noise over 85 dB, the tiny hair cells in our cochlea can become disorganized and damaged from too much and too harsh of vibrations. Once the hair cells break, they will NEVER grow back, this causes hearing loss. To treat NIHL visit an audiologist.
From David J. Lim. Functional Structure of the Organ of Corti: A Review. Hearing Research, 22 (1986) 117-146 Elsevier
Slide1130 dB Whisper60 dB Normal conversation or a dishwasher70 dB A vacuum Cleaner80 dB Alarm Clock
90 dB A hair dryer, or lawn mower100 dB MP3 players at full volume110 dB Concerts and sporting events130 dB Ambulance
Noise levels or loudness are measured in decibels (dB).
Any loud noise over 85dB is considered loud enough to cause NIHL.
Slide12Levels of Noise.
Slide13An Audiologist is…
A state licensed health-care professional that holds either a doctoral degree or a master’s degree in audiology from an accredited university.
Audiologists perform any of the following functions:
prescribe and fit hearing aids
assist in cochlear implant programs
perform ear or hearing-related surgical monitoring
design and implement hearing conservation programs and newborn hearing screening programs
provide hearing rehabilitation training such as
auditory training
speech reading
listening skills improvement
Slide14You can protect your hearing and
enjoy
the things you do everyday!
Slide153 Ways to Protect Your Hearing
Slide16Walk Away
If the noise is too loud, you don’t have to be near it, avoid it walk away. Moving back 10 to 15 feet from the noise can reduce the intensity that is going into your ears.Avoiding loud sounds can be a highly effective approach for protecting your hearing.Be aware of how long you have been in a noisy environment, exposure time also plays a role in NIHL.
Slide17Turn It Down
TVs, car stereos, and MP3 players are often culprits of dangerously high noises.Most volume controls do not have a safety point for when the (dB) level is too high.Turning down the volume will reduce prolonged exposure to harmful decibels.Encourage patients to keep the volume at 50%.When listening to anything with ear buds or ear phones: if someone next to you can hear what you are hearing, the volume is probably too loud.
Slide18Wear Ear Protection
If you know you are going to be around noise over 85 dB, the best solution is to wear ear protection. Generic earplugs – Must be pushed far in the ear for the best seal.Custom earplugs (made to fit your ear)See your audiologist for these, similar to what musicians and pilots wear.Earmuffs- must cover the full ear.NOT FASHION EARMUFFS
Look for the NRR rating to know the approximate decibel reduction the ear protection provides.
Slide19If you think you might have a hearing loss.
Visit
www.HowsYourHearing.org
to find an audiologist in your local area and set up an appointment for a hearing screening.
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