Monthly Archives: October 2014

New Hearing Aids: What Should I Expect?

First time hearing aid users

Approximately 8.4 million people in America currently wear hearing aids. While some of those individuals may have been wearing hearing aids for decades, some are just starting their journey to better hearing. If you are considering hearing aids for the first time, or considering trying amplification again after a long time, you may wonder what the first few weeks of life will be like in your new ears. Understanding what to expect can help to ease some of the anxiety associated with a new fitting.

Be Patient

On average, patients wait over 10 years after their initial diagnosis to be fit with their first set of hearing aids. Most of these people will have gradual, progressive hearing loss which they have not noticed getting worse with time. This means that many first time hearing aid users have been living in a quieter world than usual for many years. They may not have heard the softer, every day sounds of life that are always present but not necessarily attended to by individuals with normal hearing. When these individuals first start using hearing aids, these sounds are suddenly audible again. New hearing aid users report being able to hear everything from the refrigerator running, to water boiling on the stove, to the turn signal in the car. All of these sounds are now novel and interesting for the brain because they have not been heard in so long. Put simply, that means that these sounds may be at the forefront of a new user’s attention more than he or she might want. Certainly no one wants to sit and listen to the air conditioner run, but it may feel like that is what you are doing during the first few weeks in hearing aids. Be patient. Your brain needs time to adjust to all the new stimulation it is receiving and decide what is and is not important to attend to. By wearing your hearing aids full-time, you will teach your brain to ignore the noises that you do not want to pay attention to, just like it used to do before your hearing loss.

You will hear many new sounds that you have not have heard in awhile with your hearing aids. Some of these sounds will be exciting, others may be bothersome. Consistent use of hearing aids allows your brain to readjust to new stimulation.

Don’t Change Your Routine

One thing that new hearing aid users are tempted to do is to avoid crowded areas or noisy situations when they first get their hearing aids. They may be afraid that these situations will be overwhelming or even painful. It is very important that you do not change how you live your life because of new hearing aids. You should feel comfortable wearing your devices all day, every day. In order to get to that point, you have to expose yourself to more difficult listening situations like background noise and crowds. In truth, these situations may be a little overwhelming at first (but never painful!), but with time, your brain will get better at filtering out noise and focusing on speech. Being in more difficult listening situations also allows you to provide feedback to your audiologist, who can make appropriate programming changes based on your lifestyle.

Go about your regular life in your hearing aids. You may feel overwhelmed with sound in more difficult listening situations, but this will improve with time and follow-up programming.

Have Realistic Expectations

Finally, it is very important to have realistic expectations about how hearing aids will work for you. Your hearing aids will not restore normal hearing and you should be skeptical of anyone that tells you otherwise. If there is a lot of background noise present, such as in a busy restaurant or a party, communication will be difficult just like it is for a normal hearing individual. You will also likely always need to use visual cues and context clues when communicating, just like you did before your hearing aids.  Your audiologist will spend time going over your hearing loss specifically and explaining why hearing aids may help in some situations, but not in others. Don’t be afraid to ask questions! Hearing aids are a financial expense and a time commitment, so it is only fair that you know their benefits and limitations.

While hearing aids hold the potential to provide a huge benefit to individuals with hearing loss, they cannot restore normal hearing. Some listening situations will always be difficult and the communication strategies you have developed will continue to serve you well, even with new hearing aids.   

Know that your experience with hearing aids will be uniquely your own. Family and friends can provide good insight into the hearing aid process but your hearing loss and fittings are different so your experience will be different as well. If you are considering amplification and would like to talk more about your options or what to expect, please make an appointment with your JHBI audiologist today to learn more!

Noise Induced Hearing Loss

Loud Noise and Hearing Loss

Roughly 10 million cases of hearing loss can be attributed to noise exposure. Noise induced hearing loss (NIHL) is characterized by a gradual, progressive loss of high frequency hearing sensitivity that usually presents as a “notch” that occurs at or around 4000 Hz.

NIHL can occur from a one-time exposure to loud noises or from extended exposure to harmful levels of sound. Sound levels are measured in decibels (dB). Normal conversations typically occur between 50-60 dB SPL, which is not loud enough to cause damage to your hearing. Exposure to sound levels 85 dB and higher over an extended period of time can cause permanent damage to your hearing. The softer the sound, the longer period of time it is safe to listen to the sound. The graphic below, created by the Dangerous Decibels public health campaign, outlines guidelines based on NIOSH and CDC recommendations for maximum time exposure allowed in various levels of sound.

Ways To Protect Your Hearing

There are many ways to prevent NIHL, such as:

  • Avoid or limit exposure to dangerously loud sounds
  • Decrease the volume of music systems
  • Move away from loud sound sources when possible
  • If you must be around loud sounds, use appropriate hearing protection.

Hearing Protection Devices

At The Hearing Center, we offer a variety of hearing protection devices. Common devices include:

  • Swim plugs are designed to prevent moisture from entering the ear canal during swimming, showering and water sports
  • Shooter’s protection is designed to protect hunters/shooters from impulse noises up to 160 dB peak SPL. These devices can be made with special acoustic filters that allow for awareness of conversation and the ability to track animals.
  • Industrial noise protection- Some work places require workers to wear custom hearing protection due to exposure to dangerous sound levels. Employees who work in industrial factories, construction sites and around aircraft equipment are likely to be required to wear hearing protection. Specialized devices can be made that can connect to radios for those who work in jobs that require radio use.
  • Musician earpieces provide hearing protection for musicians who practice and perform in a variety of settings. Depending on the source and location of the sound, different levels of attenuators can be used in the earpieces to allow for optimal hearing protection.
  • Motorcyclist’s protection is designed to help eliminate wind noise under a helmet.
  • Custom sleep plugs can be used to promote interrupted sleep.
  • Custom fit ear tips for mp3 players or other headphones are designed to have standard earphones fit into a custom fit ear tip. These earplugs help block excessive environmental noise and allow the listener to turn down the music volume.

How Much Hearing Protection Is Enough?

Custom hearing protection is rated by a system known as the Noise Reduction Rating (NRR). The NRR is used to determine the ability of hearing protection devices to decrease sound exposure within an environment. The higher the NRR number assigned to the hearing protection, the greater potential for noise reduction. It is important to remember that the NRR number is not simply subtracted from the loudness of sound. To compute how much hearing protection is provided by an earplug, take the NRR number (in dB), subtract 7, and then divide by 2. If an earplug has a NRR of 29 dB, the equation would be (29-7)/2=11. This mean if you were at a concert were the level of noise exposure was 100 dB and your hearing protection had a NRR of 29 dB, your actual noise exposure level would be 89 dB. If you are wearing hearing protection in combination, you do not add the NRR of both devices together to find the amount of protection. Instead, you would add 5 dB to the higher NRR to find the combined hearing protection. For example, if you were wearing earplugs with an NRR of 17 dB and earmuffs with a NRR of 24 dB, your combined NRR would be 29 dB.

If you believe you are at risk for noise induced hearing loss, make an appointment with your JHBI audiologist to discuss a custom hearing protection option that is suitable for your needs!