Noise and Hearing Loss
Treating and Preventing Noise-Induced Hearing Loss
According to the CDC, 17% of adults between the age of 20–69 years have permanent damage to their hearing due to noise. This condition is caused by repeated exposure to damaging noise or even one sudden, loud noise—it is also preventable. In addition to diagnosing and treating all kinds of hearing problems, our audiologists educate patients about protecting themselves against noise-induced hearing loss.
How The Ear Works
The ear is divided into three major parts— the outer ear, the middle ear and the inner ear— all of which play a part in the hearing process.
Causes of Hearing Loss
Loss of hearing occurs when the hair cells in the middle ear are damaged. This damage can happen gradually over repeated exposure to loud noises or immediately in the case of one traumatic sound over 120 decibels. Common causes of hearing loss include recreational activities such as using power tools, hunting, participating in motorsports, attending concerts and listening to loud music through headphones.
How Is Sound Measured?
We measure sound intensity in decibels. Contrary to what you might think, how loud a noise sounds to you does not always indicate its level of sound intensity. For example, something you consider particularly loud may sound very differently in a small, enclosed space rather than an outdoor space. Sound measuring around 80 to 85 decibels can be damaging to the ears after a period of consistent exposure, while sound that exceeds 120 decibels can cause instant, irreversible damage to the hearing.
Signs Of Hearing Loss
Most patients gradually notice a change in their ability to hear instead of all at once. Oftentimes, it is friends or loved ones of a patient with hearing loss who first notice a difference. Signs of hearing loss include:
Preventing Noise-Induced Hearing Loss
Luckily, this type of hearing loss is preventable. Following these guidelines can help stop or prevent further hearing loss:
OSHA Requirements For Workers
People who are exposed to repeated excessive noise at work are at increased risk for noise-induced hearing loss. At-risk workers include those who work with noise at or above 85 decibels over an 8-hour period. Fortunately, the Occupational Safety and Health Administration (OSHA) requires employers to enroll their employees in a hearing conservation program. The program helps prevent loss of hearing, preserve existing hearing and educate workers about the proper use of hearing protection devices.