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September 12, 2014

On Friday, September 5 we visited a rehearsal of the
Fairport High School Day Jazz Band, directed by Bill Tiberio. We have “adopted”
this award-winning ensemble as part of the Adopt-a-Band program initiated by
Etymotic Research. Students had an opportunity to learn about hearing,
acoustics, the dangers of loud sounds, temporary and permanent ear damage, the
risks involved in performing music, and strategies to conserve hearing while
enjoying playing and listening to music. This was an interactive session, with
questions, demonstrations, sound level measurements, and playing from the band.
At the end of the session we provided the young musicians with instant-fit
high-fidelity hearing protection plugs, and custom fit hi-fi plugs will be
available to them at reduced cost. We were impressed at the maturity and
interest demonstrated by the students, and our visit was very enjoyable! We
look forward to following your band through the school year, and we know your
musical and academic endeavors will bring many rewards.fairport_day_jazz1.jpg

July 23, 2014
A good ear and a bad ear; unilateral hearing loss

The vast majority of patients seen for hearing loss present with roughly the same hearing in each ear. Symmetric hearing is expected in
typical cases related to aging, noise exposure, toxicity, heredity and many disease processes. Noise exposure may affect one ear to a greater extent if a
constant source of occupational or recreational sounds is located closer to that ear, as in various machinery, firearms, musical instruments, etc. Significant
asymmetry, however, is never taken lightly, and such patients are encouraged to be evaluated medically. This may be a “red flag” for diseases of the ear or
“retrocochlear” conditions affecting the hearing nerve leading toward the brain. Many of these conditions can produce associated symptoms, such as
dizziness/imbalance and/or tinnitus.

Occasionally we will see a patient with normal hearing in one ear and significant loss in the other. One ear needs no help to hear, while
the other is in need of amplification or perhaps is a total loss. This condition is very often left untreated by the patient. Obviously, one ear is
pulling in as much sound as possible, however, the other ear is depriving the listener of half the sound of the world. What are some consequences for
non-treatment, and what are the options for these patients?

For more significant asymmetric losses, localization of sounds becomes very difficult. The brain is wired to receive input from both sides
and to locate sounds based on the loudness difference between the ears, as well as the time difference. Sounds are assumed to be more intense or heard sooner in the ear closer to the source. The brain is also thought to be responsible for listening in the presence of background noise. This ability is thwarted by hearing asymmetry, as input from both ears is needed for this function. Additionally, the brain can squelch echoes in somewhat in reverberant rooms,
but needs two good ears to do so. These consequences can be summarized by stating that single-sided hearing is effective only in quiet spaces with good acoustics
and preferably when using eye contact.

Several options for treatment are available. If the poorer ear is near-normal, the patient may opt to wait until the hearing decreases to
a more significant level. With greater losses, a hearing aid on the poor side is often extremely helpful for increasing hearing, improving communication and restoring sound localization. In the case of profound or even total loss of hearing, often known as "single sided deafness", a traditional high-powered hearing aid may not suffice. One option is a CROS (contralateral routing of sound) instrument that places a microphone on the poor side and transmits the sound to the functional ear. Patients eventually learn to differentiate sounds from each side, even if they are being perceived in the same ear.

We should neither underestimate the importance of hearing from both ears, nor fail to recognize the importance of a correct diagnosis and
follow-through. It begins with a single appointment for thorough diagnostic testing and continues as a collaboration between an educated patient and a
professional. Let us put you on a clear path to good hearing and health.

May 27, 2014
Made for iPhone hearing aid technology


“Made for iPhone” hearing aid technology

By now you may have heard of new hearing technology that is
able to link (“stream”) your smart phone to hearing aids. The idea that a
hearing aid user may be able to listen to a mobile phone through hearing aids
via a wireless connection is long in coming, but it has become a reality. We now
have access to these systems here in our office.

The main purpose of any hearing instrument is amplification
of live sound, particularly speech, in environments such as home, work, travel
or social activities. This is done selectively, based on the kinds of sounds a
patient hears well and the kinds he or she hears poorly. All digital hearing
instruments must be programmed by a professional qualified to select
appropriate gain, compression and other parameters for the patient’s specific
loss and needs. This must be done in person for even a reasonably good outcome.

The idea of pairing phone to hearing aid wirelessly was
predicted years ago, and the capabilities of modern microchips and streaming
technology has finally enabled this. Adding a mobile phone to the mix requires
even more interaction between professional and patient. These are not
plug-and-play devices. Instruments must be paired, and the user must be
familiar with the controls and devices used for the pairing. This is
accomplished during a consultation in our office.

The benefits include: customized settings for various
environments (perhaps your living room or favorite restaurant) selected by the
user, hands-free phone use, using your mobile device as a microphone to improve
listening in noise, adjusting hearing aid settings using your phone, streaming
music or videos wirelessly through your hearing aids, applications (apps) to
help find missing hearing aids.

Current iPhones (5s, 5c, 5), iPad Air, iPad 4th
generation, iPad mini, and iPod Touch 5th generation are compatible
with these hearing aids. This is “MFi functionality” bringing you the ultimate
marriage of hearing aid and phone technology. Call us to find out if you may
benefit from this incredible advance. We want to keep you on a Clear Path to
good hearing and ear health!

May 20, 2014
The importance of early diagnosis and prompt action



Recently a female patient in her early 60s came to our
office and reported she felt she had lost virtually all her remaining hearing
over the past month. She had a long history of hearing loss, middle-ear disease,
Eustachian tube dysfunction and multiple ear surgeries. She is a hearing aid
user, but was not hearing from her instruments, although they were working
perfectly well and set to her most recent hearing test levels.

Knowing this woman’s medical history, we examined her ear
canals with a high-resolution fiber-optic camera after asking her in-depth
questions about her recent history. The ventilation tubes most recently
inserted in her tympanic membranes (eardrums) were not visible and appeared to
be overgrown with skin tissue. Tympanogram results indicated no drum vibration,
and the canal volume was normal, indicating the tubes were either absent or

When the patient was tested in our sound-shielded booth for
hearing levels, we found a drastic decrease in hearing levels for both ears. She
was not totally deaf, but had a “severe” level of loss, whereas she had formerly
been mild to moderate. This person was anxious about her ears and fearful she
would lose all remaining hearing. The change was clearly due to recent changes
in her middle ear and it was clear this woman needed medical or surgical
intervention without delay.

It would have been easier to simply turn up the gain on the
woman’s hearing aids or fit her with new instruments and tell her to call if
her hearing improved on its own. Sometimes, however, the easy way to approach a
problem is not the best way. After obtaining all history and test data we
called the otology practice that had operated on her ears, and they accommodated
her immediately. In this case the physicians and surgeons were in the best
position to address the immediate medical needs of her ears. The diagnostic
information we supply will support their medical diagnosis and treatment. We
will follow up with the patient as she improves.

Because we are not a retail-model “hearing aid boutique”, we
were able to identify and diagnose a problem, integrate it with a patient’s
medical history and guide her to the best available help. We take enormous
pride in our work as a diagnostic center and satisfaction in partnering with
other professionals to solve problems for our patients. This has been just one
example of such an interaction. As always, we hope to keep you on a CLEAR PATH
to good hearing and health.

May 6, 2014
Hearing and the brain

Much is known about the deterioration of hearing caused by
noise exposure, toxicity and the aging process. Inner-ear or “sensory” hearing
loss accounts for the majority of cases seen in hearing centers and reflects
the risk factors of the population. Hearing, however, relies on more than the
ear. There are brain and nerve relays and processing centers that work
constantly to help us make sense of the sounds our ears take in. When faced
with patients whose hearing abilities in quiet greatly outpaces their ability
in noisy environments, one realizes there may be problems beyond the ears that
affect the ability to listen effectively in poor acoustical surroundings.

Research has found that in patients with significant hearing
loss, the aging of the brain may be accelerated by at least six years, and
hearing loss is associated with reduction in brain volume exceeding that which
would be expected for the patient’s age. Researchers estimate the brain’s aging
process can be accelerated by more than six years in patients whose hearing
loss affects listening to speech.

Central presbycusis
is a term used to describe a limitation the brain has imposed on hearing beyond
what one would expect from inner ear damage alone, based on standard
audiometric testing.

Presbycusis (or “presbyacusis”)
means “elder hearing” and describes hearing that has been affected by the aging
process. The most typical consequences are poor high-frequency hearing for
sounds such as alarms, phones and electronic beeps, difficulty hearing
consonant sounds such as /s/, /f/ and /th/, and reduced clarity of speech and
music. Most often this is due to gradual deterioration of the sensory cells in
the inner ear.

Central” refers
to the central nervous system, the brain and nerve network involved in hearing.
The nervous system/brain processing of sound allows us to take the signals our
ears detect and “decode” nerve impulse patterns that tell us: what kind of
sound we’re hearing, the identity of a speaker, what words mean, how loud or
soft sounds are, whether music sounds “musical”, the direction(s) sounds
originate from, and other aspects that give meaning to sound. Another function
of the brain in listening is to “filter out” and ignore background noise, a
typical property of younger ears. This brain function may fade over time
irrespective of hearing levels. Overall, many brain regions operate in concert,
providing us with all the information we extract from the sounds we hear.

There are tests beyond the traditional hearing diagnostic
evaluation that can help assess the ability to hear in the presence of
background noise, learn sequences of sounds or repeat complex patterns. Often
we need to use additional assessment tools, in order to learn the nature of the
problems a patient complains about. Not surprisingly, a five minute free
screening at a retail hearing aid center yields very little useful information
about the true state of a person’s hearing system. The options we select for
rehabilitation and counseling depend on more than just numbers on one sheet of
paper. Choose professionals wisely when you suspect a problem. When the time
comes we will be there for you and will do our best to keep you on a Clear Path to good hearing!

March 18, 2014
Do tinnitus treatments work?


Do tinnitus treatments work?

Much has been written, here and elsewhere, about treatments
for tinnitus, the often bothersome perception of phantom sounds. These sounds
are reported as ringing, buzzing, hissing, humming or other essentially steady
sounds in one or both ears. In our experience the problem is not the noise
itself, it’s the patient’s reaction to the noise, or the degree to which he or
she actively listens to the sounds. Tinnitus turns out to be a problem of “hypermonitoring”

Many patients report they rarely pay attention to their
tinnitus. They typically hear it more during quiet times but may not regard the
sounds as worthy of their attention. The brain can “let go of” or ignore
stimulation it does not consider important enough to monitor. This is partly
due to a safety mechanism whereby we monitor our environment for potential
threats. Sounds that are well known to us as non-threatening are not given high
priority. Think of the hum of a refrigerator vs the strident sound of a
rattlesnake. Which sound deserves more attention? In fact, we are more likely
to pay attention to an appliance when it is malfunctioning and producing an
unusual noise. It is interesting that many patients liken their tinnitus to
cricket chirping, yet they do not complain of real crickets during the summer. Also
a lighted candle can be dominant in an otherwise dark room, but seems insignificant
in a well-lit room. This demonstrates how our environment and expectations
influence our perceptions.

At Clear Choice Hearing and Balance our treatments safely
promote the process of habituation, whereby the tinnitus can eventually become
no more threatening than a refrigerator. This process typically takes time when
protocols are applied consistently, but studies have found that it is effective
70-90% of the time when compared to older methods such as “masking”. Other
studies have examined the factors contributing to success of treatment, and the
most important factor was patient follow-through of protocols, particularly
concerning instrumentation when products have been recommended. For example, patients
with significant hearing loss should wear hearing aids, and other devices, such
as the Serenade® device by SoundCure™, have been used in treatment. High
compliance correlated to good success, whereas poor compliance did not.

This process may take the form of a gradual lessening of
awareness at all times, but often the result is shrinking “windows” of time
when the tinnitus is bothersome. Either way thousands of patients across the
world have learned from experience that a true “cure” is not necessary if the
sounds of tinnitus become just another benign part of your auditory world.

Contact us and let us explain further and help put you on a clear path to good hearing and ear

February 26, 2014
Are medications always the answer?

Are medications always necessary?

Lately it seems hard to escape the constant flow of
pharmaceutical commercials and print ads for a seemingly endless list of
maladies. In our own office we see many patients whose medication lists span
more than a full page. All of the drugs listed may be necessary and effective,
however, do ALL disorders require medications, and can drugs (or surgery) cure
or improve all conditions?

In our work diagnosing balance/dizziness disorders, we often
find problems caused by the “vestibular system”, or the inner ear balance
center. The ear is a balance organ first, a hearing organ second. Our VNG
(videonystagmography) test battery provides clues about the origin of the “lesion”.
The eyes, it turns out, are not only the “windows to the soul”, they are the
windows to the inner ear. When eye movements follow a particular pattern, we
may discover one ear is weakened in its ability to send nerve impulses to the
brain when the head changes position. This may be due to conditions such as
labyrinthitis or vestibular neuronitis, and dizziness are the result of
mismatched messages from the ears. Normally the ears work as equal partners,
however, if one is damaged and sending weaker signals, the brain may not be
sure which ear to “listen to”.

Research has shown that medications given to ease symptoms
by suppressing the vestibular system cannot strengthen the weaker ear, but can
actually delay improvement in symptoms. Vestibular rehabilitation therapy can
promote a “recalibration” of the brain to mismatched signal strengths and
improve patients’ symptoms without medications.

A very common vestibular problem is positional vertigo
(BPPV), in which tiny bits of debris (“ear stones”) block one of the
semicircular canals. Again, this disrupts the signals the brain has become
accustomed to for information about the position of the head, resulting in
intense, brief spinning dizziness. When this is discovered, treatment involves
a specific series of movements designed to clear the debris from the canal. It
is not reasonable to assume a drug can seek out calcium crystals and physically
move them.

Finally, it has been mentioned here and elsewhere that
tinnitus (phantom noises in the ears) should not be treated with medications.
Drugs such as antidepressants should be taken only for their intended purpose.
For some patients, an underlying psychological condition may exacerbate the reaction
to tinnitus. This should be discussed with a psychologist or psychiatrist,
however, tinnitus on its own does NOT require medicine. Strategies such as
Tinnitus Retraining Therapy and/or amplification can be very effective without
changing your blood chemistry or causing side effects.

Modern-day medications can improve or alleviate many
ailments, however, medications are not always the best option for all
conditions. An otologist or audiologist can help you select the most effective

January 10, 2014
See local professionals who are truly LOCAL

Seek local professionals who are truly local

Much has been made in the press lately about businesses and
jobs leaving or staying in New York State. One can easily argue the pros and
cons of remaining in NY, however, it is no secret we have a long-standing tradition
of excellence in the Rochester area in terms of the medical, engineering,
optical, arts and academic fields. Our region is even an important and vital
place to the Deaf community. We are the original home of Kodak, Xerox, Wegman’s,
Bausch and Lomb, Paychex, Genesee Brewing, Hickey Freeman and many other influential
businesses. Local professors and researchers are consulted regularly by
national news sources. Performers such as Garth Fagan, Chuck Mangione, Renee
Fleming, Cab Callaway and Lou Gramm have called Rochester home. One could
conceivably live an entire day using only products, services, information and
entertainment originating right in our back yard.

There is a trend in the business world to grow outward
and/or expand the scope of one’s reach. Major retailers are now adding grocery
market sections, optical centers, automotive areas and even hearing centers.
People are likely enticed by the convenience of “under one roof” shopping, perceived
low prices and “discounts”. This retail model, as applied to the hearing
center, carries with it several troubling implications. Hearing instruments are
sold as appliances to “customers” instead of being dispensed as medical devices
to patients. True diagnostic examinations may not be performed at all (see
earlier blog entries on free screenings vs. diagnostic testing). The
qualifications and experience of the employees may be limited. Finally, money
paid for products and services will end up primarily at corporate headquarters
instead of being reinvested in the local economy.

Similarly, there are stand-alone hearing centers whose
headquarters exist out of state. Some of these are large, publicly traded
corporations. Their professionals typically do not have the autonomy to select from
an array of product brands or services to which a local business has access. Audiology
and hearing aid dispensing are equal parts science and art. A hearing-impaired
person in search of help should not have to be worried that his needs are
secondary to the needs of stockholders and CFOs. If you call a center, even if
the phone number appears local, ask the person who answers if the call is
received locally AND if the business is wholly owned locally. Often calls are
routed to phone banks at corporate headquarters far from New York State.  

There are several excellent locally owned and operated
hearing centers in this region. We hope you choose us, of course, but no matter
who you see, be sure to keep it local. You only get one set of ears!

December 16, 2013
More on screenings vs diagnostic evaluations

Screenings vs diagnostic evaluations

Hearing centers may occasionally produce marketing materials
enticing potential patients or clients with “free hearing screenings”. While
the idea of getting some service for free may be initially appealing, and while
quick screenings can be useful at informal occasions such as health fairs, they
are of extremely limited benefit to people
who have genuine concerns for their hearing or ear health.

The purpose of a screening is to identify a potential problem with hearing or the
health of the ears. The subject is asked to respond to tones presented to one
or both ears until the lowest levels of sound detected by the subject are
recorded. This may be performed in a room that is not isolated from outside
noise. The only information generated in this scenario is difficulty with
certain tones in the specific environment used for the screening. Precise hearing
levels in quiet, word recognition, and “site of lesion” (outer ear, middle ear,
inner ear, auditory nerve pathway, etc.) cannot be evaluated in this manner. A
“failed” screening identifying a potential problem should necessitate a full diagnostic battery.

Diagnostic audiometric evaluations are always the standard
in identifying and quantifying disorders of hearing and their likely origins.
Appropriate treatment depends on accurate, reliable and valid examinations of
the elements of hearing in a sound-shielded environment. In our office we “work
our way inward”. We begin with a fiber-optic high-resolution magnified video image
of the outer ear structures, from the pinna (visible area) through the canal to
the eardrum. Is cerumen (ear wax) interfering with hearing? Then, since we
cannot see past the drum, we use tympanometry
to determine the health of the middle ear space, which includes the three tiny
bones (ossicles) behind the drum and the Eustachian tube, which drains the
middle ear to the throat and allows air to infiltrate the space. Acoustic reflexes rely on the auditory
nerve and facial nerve while protecting us from loud sounds. Otoacoustic emissions use a variation of
SONAR technology to gauge the integrity of cells in the inner ear hearing
organs (specifically “outer hair cells”).

Along with these “objective tests”, the subject must enter a
sound-treated booth and don special headphones or earphones and respond to
tones. Ear-specific threshold levels are obtained for many frequencies,
revealing the subject’s absolute limits of hearing soft sounds. Threshold
levels for words are also measured, after which word recognition percentage is
determined for each ear using approved word lists at a “comfortably loud”
level. Bone conduction tone thresholds should be measured, in order to
determine if a “conductive loss” in the outer or middle ear is preventing sound
energy from reaching the inner ear.

All the diagnostic information can be integrated by an
audiologist to determine if atypical or unexpected results require referrals to
other professionals, such as otolaryngologists. These physicians may order
imaging studies and/or diagnose diseases of the ear that may be treated
medically or surgically. More typical results are evaluated for level of
impairment, in order to inform the audiologist and patient and guide the best
options such as hearing aid use, hearing protection devices, communication
strategies and more. Caring for ears and hearing often takes a team effort. A
five minute screening is not sufficient for effective management of most

November 15, 2013
What is positional vertigo?

Many people use “dizziness” and “vertigo” interchangeably. While the group of conditions known as vertigo produce dizziness sensations, not all dizziness is vertigo. Let us examine the difference in these terms.

Dizziness essentially refers to a sense of physical disorientation in space or illusory movement. There may also be a sense of “light-headedness”, where the person may suffer momentary altered sensations, such as blurred vision and difficulty maintaining balance. One such condition is known as orthostatic (or positional) hypotension, which is temporary low blood pressure in the head. The brain and sense organs of the head are the biggest consumers of the oxygen carried in the bloodstream. When the head rises (as from a bed) too rapidly, the resulting lack of oxygen reaching the head can momentarily cause a dulling of the senses and “dizziness”. This typically lasts for seconds. Similar sensations of unsteadiness can also be psychologically influenced, such as that caused by fear of heights, bridges or enclosed spaces.

Vertigo, on the other hand, typically refers to a spinning sensation and is most often related to the main balance organs of the body, the ears. Benign Paroxysmal Positional Vertigo (BPPV) is a common condition that causes many people to avoid provoking movements, such as bending downward, lying back or rolling in bed. It is caused by an accumulation of mineral debris which has migrated from one part of the inner ear (the saccule) into one of the semicircular canals. These calcium-based otoliths “ear stones” are used to sense linear acceleration, as motion causes them to move toward, and bend, specialized cilia on balance receptors known as “hair cells”. When the acceleration signals from both ears match each other and reinforce what the eyes see, we sense acceleration. If the debris happens to block one of the semicircular canals, which detect “angular acceleration”, the brain will receive mismatched signals about the head’s position or movement. Dizziness is the mind’s way of expression confusion with conflicting information.

Positional vertigo typically is triggered by movement or position. Its most common presentation, posterior canal BPPV, canalithiasis variant, is characterized by spinning dizziness, nausea, a twisting movement of the eyes and brief duration (15-30 seconds). The symptoms typically fatigue upon repetition, and repeated movements tend to result in milder dizziness.

The quickest, least invasive, most cost-effective and best treatment for BPPV is called a canalith repositioning maneuver. With versions named after researchers named Epley, Semont, Gans and others, the clinician uses gravity and the density of the particles to unblock the canals and allow the debris to clear into an area where it can be easily absorbed. Obviously no medication can specifically target crystalline debris in the inner ear, pick up the stones and remove them.

November 8, 2013
Sound localization

 Directional hearing

Just as our eyes inform us of the position of people or objects in our environment, our ears are also directional. Young children learn to turn their heads towards a sound. Stereo recordings fill our heads with music that stretches from side to side and fills the space in between. It is also not difficult to notice the safety implications of judging the direction of sounds that signal imminent danger. How does this work, and how do we incorporate both ears to identify the direction of a sound source?

Our ears have been placed on the sides of our head and are essentially oriented “forward”. The conical shape of the outer ear “pinna” (the visible portion) favors sounds coming from the front. This is not difficult to understand, given the emphasis on vision in communication. We like to see whomever we’re talking to. Sounds from directly in front of us tend to sound relatively even between the ears. Sounds from the side, however, “sound like” they’re coming from that side.

High-frequency (high-pitched, as whistles and speech sounds such as /s/, /f/, and /th/) sounds are localized by our ears from left-to-right based on the relative level of sound. Known as the “interaural level difference”, sounds that are more intense on one side will be sensed toward the more intense side. Low-frequency (“bass” sounds and vowel sounds in speech), on the other hand, are localized according to “interaural time difference”. The ear receiving the signal first will be assumed to be the side from where the sound originates. In both cases the greater the difference from ear to ear the more lateral the sound will appear. Sounds from the extreme left or right are also easily judged due to the “head shadow”, where the farther ear has sound blocked by the head. Stereo recording exploits another phenomenon called the “Stenger Principle”. If both ears receive the same signal directly, as through headphones, but the sound is more intense on one side, the listener will only perceive the louder side.

Scientists have discovered another, more complex, method of sound localization. We have seen the importance of utilizing both ears for localization, however, researchers have found that the folds and contours of the outer ear not only funnel the sound energy toward the eardrum, they cause reflections of the sound waves that may reinforce or interfere with the original waves. These reflections will differ based on the angle of the incoming sound. This is known as a Head Related Transfer Function (HRTF), which requires only one ear and is reinforced by the experience of the listener. Sounds moving around the head will produce changing reflections of sound, and the brain learns to recognize the difference between various angles. “3D sound” technology has been able to mimic this phenomenon through selected filtering of sound, generating an illusion of three-dimensional space. Sounds are not only localized left-to-right, but also top-to-bottom and front-to-back. See www.youtube.com/watch?v=5oAPsP2JZ9s for an amusing demonstration that requires headphones.

For our daily activities it is readily apparent that localizing sound is important not just for safety, but for effective communication. Hearing impairments interfere with all of the localization methods we’ve discussed, therefore it is imperative to ask your hearing professional how to best preserve and maximize this important and complex aspect of hearing. Let us keep you on a clear path to good hearing and ear health.

October 30, 2013
hearing loss vs deafness

Often we see patients with hearing loss who refer to themselves as “deaf”. Spouses may also chime in, “See, I told you you were deaf”. While we do not downplay the effects of hearing loss, we always gently correct the speaker when it is not used correctly. Mild or moderate hearing impairment and deafness are no more synonymous than near-sightedness and blindness. The distinctions are important and bear an explanation.

In typical audiological use “hearing loss” is just that. It is a reduction of the sense of hearing, regardless of degree, from a previous level. Most people who are hard of hearing are “hearing people” who have (gradually or suddenly) experienced more difficulty using their ears to communicate. This may be due to genetic conditions, ear malformations, disease, medications, noise abuse, trauma, aging or a combination of factors. This can be a devastating condition for patients who have always relied on hearing as their primary mode of communication. These people find themselves relying on strategies such as lip-reading, using captioning and using amplification, in order to maximize whatever hearing they retain. This describes many hearing aid wearers. They are able to hear, but their damaged ears require increased intensity of sound, and they often hear very well with amplification. Often certain sounds can be heard reasonably well (typically low frequency “bass” sounds) while higher-pitched sounds are impaired. Unfortunately English and many other languages emphasize high-frequency sounds for clarity.

On occasions where there is essentially a total lack of hearing (over 90 decibels is required for the person to detect a sound), we use the term “deaf”. At this level of hearing impairment one cannot generally use sound as a primary mode of communication, given the acoustic complexity of spoken language, particularly if the condition is longstanding. Many people are born deaf and have never actually “lost” hearing. Communication via a signed visual language, such as American Sign Language (ASL), Signed Exact English or finger spelling, becomes a primary method with an added benefit that it is mutually accessible to hearing people. Deaf people also utilize facial expressions and other non-verbal cues to add emphasis to a greater degree than hearing people. These methods work perfectly well along with written language and visual alerts, and deaf people may arguably be considered less “handicapped” than hearing-impaired people who have lost the sounds they relied on so heavily.

When a deaf person wishes to hear (many prefer to maintain their deafness), often even the most powerful hearing aids are inadequate for listening effectively to speech. Many deaf people wear hearing aids primarily to hear environmental sounds or elements of music. Often patients who have been deafened after learning language will use a cochlear implant (CI). This device converts acoustic signals into electrical impulses that stimulate the auditory nerve directly. The nerve fibers project to the same auditory brain region as in hearing people. While many report the sound can be “mechanical” or “metallic” and harsh at first, auditory memory and experience enable many patients to hear at near-normal levels.

October 14, 2013
hearing health risk factors

Risk factors for hearing loss

A thorough audiological examination should begin with a careful medical history. Along with the actual presenting complaint or symptoms, listening to past history is an important early step in helping determine the source of the patient’s problem. Risk factors are any and all pieces of information about a patient’s history that suggest increased likelihood of a problem. Obviously, conditions such as a hernia or sprained ankle are not likely to be related to hearing. There are, however, many conditions, diseases or lifestyle choices that can affect the ears. These should be known to the examiner if we wish to understand the patient’s condition fully.

Let us examine some risk factors for hearing.

  • Family history. Having relatives with ear conditions (not otherwise explained by environmental factors, such as lifestyle or occupation) increases the likelihood of problems. Genetic factors may be at work.
  • Noise exposure. OSHA workplace regulations limit allowable noise exposure times beginning at 85 decibels. Sound intensity and duration of exposure interact to produce safe or unsafe “doses” of exposure. The mechanism of noise damage will be the topic of a future article, however, the public needs to be aware that activities such as lawn mowing, live music, extensive headphone use, power tool use, firearms use, factory work and even attendance at events with massive live audiences (such as NFL games) can produce inner ear damage.
  • Toxicity. Many medications, such as certain classes of antibiotics (particularly aminoglycosides), chemotherapy agents, diuretics, quinine, analgesics and even erectile dysfunction drugs can be harmful to the ears. Environmental substances, such as toluene, may also be toxic to hearing and/or balance function.
  • Illness. Diseases such as diabetes, meningitis, vascular conditions, otosclerosis, Eustachian tube dysfunction, Meniere’s disease, labyrinthitis, autoimmune conditions and many others are associated with increased risk for hearing loss.  

Often the above risk factors can interact. For example a noise exposed person with a family history of hearing loss working with toxic chemicals is certainly at higher risk when all these factors are taken into consideration. Any individual who suspects multiple risk factors needs to exercise even greater vigilance in protecting and monitoring his or her hearing. This should include periodic audiometric evaluations.

September 6, 2013
Is it hearing or "processing"?

Many patients enter the test booth of an audiology center convinced of a decrease in their ability to hear. The most common reason given is difficulty following conversation, perhaps most markedly in subpar acoustic environments. Often spouses or family members make note of changes over time. They may even report an increase in TV volume. What are we to decide when the hearing evaluation reveals normal middle ear function and no change in actual hearing levels?

Research on the brain and hearing system has demonstrated the possibility of disruptions in listening capability NOT directly related to hearing levels. We have stated in earlier blog entries the complexity of the hearing system, from the outer ear to the cortex of the brain. This system depends on the "transduction" of acoustic sound energy to mechanical vibrations to nerve impulse patterns involving multiple structures and a pathway routing information, often in both directions. Any malfunction or interruption of the speed of transmission of all this information may interfere with what we call AUDITORY PROCESSING.

Auditory processing refers to the coordination within the hearing system that accurately transports auditory signals towards the brain and extracts meaning from the information. Processing disorders can interfere with timing of the signals reaching the brain, the ability to utilize both ears effectively, the ability to understand a message with missing information (such as in poor acoustic environments), and other necessary elements of good hearing.

Strategies of habilitation for impaired auditory processing may differ from those found to be effective for common hearing loss. Identification is the first step. Let us evaluate your ears and determine the best path to take to maximize hearing, communication and quality of life.

August 5, 2013
The problem with ears...

The problem with ears


Often patients, especially new patients, will remark on the extensive testing we perform and the equipment we use. Often they have never seen or experienced such an array of diagnostics examining various parts of the ear and hearing system. “For my commercial driver’s license test they just stood behind me and whispered”. “When they tested me at ____ (retail hearing aid center), we were in a room with other people and copying machines running. All I had to do was click the clicker when I heard a sound, but you’re doing so much more”, etc. Many patients seem impressed at our comprehensive test battery, but we like to explain the value of each test. They do not exist merely to give the appearance of thoroughness; we are gathering information and making judgments about a very elusive system that can’t be directly observed.

Most of us learned in school that the ear has “three parts, the outer, middle, and inner ear” without a good understanding of where one region ends and another begins. Many people will complain of pain in the “inner ear” any time the sensation is deep and away from the pinna (the visible portion of the outer ear). In our office we use a high-resolution fiber optic camera to visualize the ear canal, and the patient can look as well. Barring wax or other occlusion or malformation, the tympanic membrane (eardrum) is as far as we can see even with a camera or microscope. Often the middle ear bones, or ossicles, can be seen behind some eardrums. The region that can be seen through the canal is just the beginning of the hearing mechanism.

The true “inner ear”, also known as the cochlea, lies past the ossicles and is encased in part of the temporal bone of the skull. Neither the oval window nor the round window provides even a reasonable view of the workings of the inner ear (perhaps they were poorly named!). The organs of hearing, where mechanical energy is converted to electrochemical nerve impulses that travel towards the brain, are housed in complex structures within the cochlea. Even advanced MRI, CT, PET or ultrasound imaging can inform the clinician if the inner ear is functioning normally, as the structures are neither bone, nerve or vascular in nature.

We have described the tests we use to locate damage in the outer, middle and inner ears in previous blog entries. We use them because visual inspection of the ear canal and the patients’ symptoms are simply not sufficient for a diagnosis. Often the eye can be fooled. Patients with apparent eardrum perforations, as viewed through an otoscope or microscope, often prove to have a perfectly sound drum, as verified by tympanometry, an objective measurement that relies on reflected sound and measurement of ear canal volume.

Always opt for a full diagnostic evaluation when your ears are in question. Let us put you on a clear path to good hearing and ear health.


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