What is an Audiologist?

More often than not, when someone asks me what I am studying and I reply with "audiology," I see a curious look on the face that is accompanied with "what is that?" Other times, people are able to make some connection to the ear. I enjoy educating others about the field of audiology and the scope of practice for an audiologist. I feel strongly about the positive difference we can make in patients' lives in helping them hear better, which can ultimately lead to an improved quality of life. Having said that, audiologists are not only involved in the diagnosis and treatment of hearing loss, but also evaluate those individuals with balance problems. 

According the American Academy of Audiology, "audiologists are the primary health-care professional who evaluate, diagnose, treat and manage hearing loss and balance disorders in adults and children." U.S. News and World Report has ranked the profession of audiology as one of the best careers in 2006, 2007, 2008 and 2009. Check out the Best Careers 2009 report: U.S. News and World Report. 

The scope of practice can vary and similar to other medical professions. An audiologist can be in general practice where he or she does diagnostics and treatment. Or can become specialized in a specific area of the field, such as cochlear implants, vestibular (or balance) testing and treatment, pediatrics, diagnostics, evoked potential testing, treatment involving amplification, etc. 

The current educational requirements for becoming an audiologist is a Doctor of Audiology degree (Au.D.), which involves attending a 4-year program following a bachelor's degree and licensing. 

Click on the image twice to enlarge (image source: American Academy of Audiology). 

Etymotic custom earpieces - are they worth it?

The Wall Street Journal recently posted an article written by Courtney Banks, who shares her experience with using a pair of custom-fit, noise-isolating earphones by Etymotic, Inc. Listening to any music device can be frustrated in the presence of background noise. There have been published studies that show the effects of listening to mp3 players at very loud volumes for extended periods of time. This type of exposure can lead to noise-induced hearing loss. Since standard earpieces do not block excessive noise in the environment, people tend to crank up the volume on their mp3 players to hear over the noise. According to Etymotic, the custom-fit earphones can reduce ambient noise by 26 decibels.

Good news is that noise-isolating earphones are becoming increasingly more popular. For a more comfortable fit in the ear canal and for a better seal, custom earpieces can be added to Etymotic's Hf2 noise-isolating earphones ($179). The article describes how an audiologist can take impressions of the ear canal to create the custom piece, which fits on the earphones. These cost an additional $100, but according to Ms. Banks, they are well worth it! 

Check out a video of the custom earpieces - Wall Street Journal

To reach a wider audience, Etimoytic is selling the earpieces through Perfectearphones.com and plans to sell them in Apple stores by summertime. The standard earphones are purchased with a voucher. Simply take the voucher to an audiologist's office to have impressions taken of your ear canal. These impressions are used to create the custom earpiece. Check out the full WSJ article here. 

Hearing Sparks: Netflix Adds Subtitle Support for Around 100 Instant-Stream Titles

Meet Megan. She happened to come across my blog and we exchanged blog information. Her blog, Hearing Sparks, shares her story on being diagnosed with a progressive hearing loss in both ears at 4 years old. She now has a severe hearing loss in her left ear and a severe to profound hearing loss in her right ear. She has been wearing hearing aids since her diagnosis. 

Megan blogs about her life experiences, audiology and other technology related topics. Having a chance to take a glimpse into her life with hearing loss is very insightful! A perspective on the every day life experiences that my patients don't always have the time to share. 

On a recent post, she shares some good news about Netflix adding subtitles to about 100 of the movies that can be streamed instantly on the computer (Mac and PC compatible). This is wonderful for individuals who have not used the instant streaming movies due to the lack of caption accessibility. 


Read the post: Hearing Sparks: Netflix Adds Subtitle Support for Around 100 Instant-Stream Titles

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Why Hearing Aids DON'T Suck by Healthy Hearing

A recent article published on the Healthy Hearing website provides a rebuttal to a Wired magazine article titled "Why Things Suck: Hearing Aids," that according to Healthy Hearing, gave misinformation about current hearing aid technology. Here is one example from the Wired magazine article: "High-end hearing aids add a directional microphone trained in front of the listener, but that increases cost and, critically, bulk." This is a false statement!


Almost every digital hearing aid on the market today is equipped with directional microphones that can assist the listener understand speech better in noisy situations compared to an omnidirectional microphone that picks up sound from all around. The hearing aids with dual microphones are not more expensive nor do they require larger hearing aid casings. Check out one of Phonak's new products, the Audéo SMART (pictured), which is a small hearing device with directional microphones offered at all three performance levels along with other features. Not only does this hearing aid have a directional microphone but it has adaptive directionality, like most hearing aids on the market today. This means that the hearing device can be set to automatically evaluate the sound environment and select the best microphone configuration for the situation.


The Wired article also goes on to say, "Hearing aids can cost more than $3,000 apiece," which is also incorrect! Hearing aid technology comes in a range of prices and do not start at $3,000! The article goes on and on feeding the reader inaccurate information without any resources.


Ok, I digress. Read the article by Healthy Hearing called, "Why Hearing Aids DON'T Suck," to learn about how hearing aids can improve one's ability to hear and positively impact the quality of life of hearing impaired individuals. It also provides a good overview of advancements in digital hearing aid technology including design, microphones, digital sound processing and batteries.

Link between Painkillers and Hearing Loss

Can taking common over-the-counter painkillers lead to hearing loss? The results of a study published last month in the American Journal of Medicine investigated this question. Participants included about 27,000 men who were tracked every 2 years for 18 years enrolled in the Health Professionals’ Follow-Up study. The data collected included medical information, use of analgesics, and hearing loss among other data.  

Acetaminophen

Researchers found that men below 50 years of age who regularly took acetaminophen (found in Tylenol) more than two times per week had about double the risk of hearing loss compared to men who did not take the medicine regularly.

Ibuprofen (main ingredient in Advil) and Non-Steroidal Anti-Inflammatory Drugs (NSAID)

Men younger than 60 years who regularly took ibuprofen and NSAID at least twice a week had almost two-thirds higher risk of hearing loss compared to men to took it less often.

For men younger than 50 years, the risk of hearing loss was higher by 33 percent using aspirin, 61 percent with use of NSAIDs and 99 percent with use of acetaminophen, compared to men of the same age who used these drugs less often (all based on taking painkillers twice a week). 

Why does this happen? According to one of the researchers, Dr. Sharon G. Curhan, of Channing Laboratory and Brigham and Women's Hospital mentions that high doses of painkillers are known to have a toxic effects on the ear leading to hearing loss and tinnitus or ringing in the ears.

A positive finding for men 60 years and older was that they did not show a greater risk for hearing loss when compared to the findings for younger men.

The take home message is that you should consult with your physician about the risks of taking over-the-counter or prescription medication. If you think you have a hearing problem, you can have your hearing tested by an audiologist. 

Via Yahoo! Health