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Hearing Aids - Knowledge Bank

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Hearing Aids - Knowledge Bank

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Hearing aids are no longer the bulky pocket device that older adults used to carry around. Read the article to know about the types of hearing aids and recent advances.

Medically reviewed by

Dr. Sneha Kannan

Published At October 7, 2020
Reviewed AtAugust 10, 2023

Once the term hearing aids is heard, an older adult with a bulky pocket model hearing aid with long cable comes into the mind. But anyone of any age can get hearing loss (irreversible type) and may have to go for hearing aids if recommended by an audiologist. Those bulky pocket model hearing aid days are gone. Nowadays, one can get completely in the canal hearing aids, which are smaller than a small coin. Let us have a clear cut idea about hearing aids and when to go for it.

Hearing Loss - Types and Degree:

Mainly, hearing loss is of three types:

  1. Conductive hearing loss - here, the problem persists in the outer ear and/or middle ear.
  2. Sensorineural hearing loss - consists of problems in the inner ear and beyond the area.
  3. Mixed hearing loss - a combination of conductive and sensorineural hearing loss.

Also, there is something that affects the hearing area of the brain, and that comes under central auditory processing disorders.

Degrees of hearing loss are mild, moderate, moderately severe, severe, and profound according to the average of loss at three frequencies in total (Threshold at 500 Hz + 1kHz + 2 kHz).

When to Go for Hearing Aids?

Most of the conductive hearing loss cases, but not all, can be treated through medicines or surgery. But when it comes to sensorineural hearing loss, mostly medicines and surgeries are not that much effective. If the sudden hearing loss can be detected within 72 hours, then intratympanic steroids help a bit. But mostly management is hearing aid usage.

If, after the hearing tests (pure tone audiometry, speech audiometry, and other tests), the audiologist suggests you go for hearing aids, you should give time to understand what exactly is happening inside and what is the current condition of your ear. Just because you do not feel that you have a loss does not mean the threshold of hearing at every frequency is within normal limits. Maybe you have a high-frequency hearing loss, and you are managing with the better threshold, which is at low frequencies. The more time you are not listening to sounds, the more your hearing area of the brain is deprived. Later, when you make up your mind to go for hearing aids, results may not be that much because already, the hearing area of the brain is deprived.

If a child at birth has hearing loss and you are going for hearing aids, just putting the hearing aids will not solve the problem. Moreover, auditory training and speech therapy should be started as early as possible.

Types and Styles of Hearing Aids:

There are different types of hearing aids:

  1. Air conduction hearing aids.
  2. Bone conduction hearing aids.

Styles of hearing aids are increasing with more research, but basically, it is of the following types:

  1. Behind the ear (BTE).
  2. Receiver in the canal (RIC).
  3. Completely in the canal (CIC).
  4. In the canal (ITC).
  5. In the ear (ITE).
  6. Invisible in the canal (IIC).
  7. Recently, Micro CIC hearing aids are added.

Remember, style selection is fully based on the degree of loss and configuration, so do not force the audiologist to give you a specific style of hearing aid. Let him choose the best one according to your pattern of loss.

Why Are Hearing Aids Too Costly?

In most countries, hearing aids are costly because most of the hearing aid companies are imported from Western countries. You can demand lifetime free programming of the hearing aids (computerized programming, and extra batteries, if possible). The free servicing of hearing aids four times in two years warranty is what you get.

Always remember that this combination creates the best result:

  1. Better quality hearing aids (not necessarily the best one).
  2. A qualified audiologist.
  3. Proper programming.

Does an Increased Number of Channels Mean Better Quality?

Not necessarily. Again that is a controversial topic. Nowadays, channel-free hearing aids are available and work excellent as well. So do not get motivated by the number of channels, and ask for features like noise reduction, dual mic, connectivity, AI, auto-speech detection, etc. Hearing aids having more than 6 channels will increase the processing time (more the number of channels, more the time it will take to process). Research suggests 4 to 6 channel hearing aid are working the best and suit the sensory organ structure and function.

What Should Be Done After Hearing Aid Fitting?

Follow-up after 15 days of initial fitting with the feedback of how you felt in these days should be done. If needed, the audiologist will fine-tune the settings, and you need to wait for some time to get the best result because your ears and hearing area of the brain needs time to get adjusted to the external instrument.

Hearing Aid Care and Maintenance:

  1. Keep your hearing aid away from water and dust.
  2. Put the hearing aid inside a dehumidifier box every 15 days (do not put the battery inside the dehumidifier box).
  3. Keep the hearing aids and its batteries away from children and electronic appliances.
  4. Do not drop your hearing aids from heights.
  5. Clean your hearing aid with a brush provided and with dry cotton.

Wireless Hearing Aids and Rechargeable Hearing Aids:

These are the latest hearing aids with wireless technology, which are synchronized with mobile and other devices through Bluetooth. People who are very active professionally or attending frequent meetings can get connectivities in a much better way. Rechargeable hearing aids can be bought, but they are a little costlier, which can be adjusted in no battery purchase. The hearing aids can be charged like a mobile phone because nowadays, rechargeable hearing aids use Li-ion (Lithium-ion) batteries.

AI (artificial intelligence) are getting embedded with hearing aids, which can measure the vitals of the body, and can give a signal if a person is going to fall by alerting through the phone to near and dear. Consult with audiologists and speech therapists online for any speech and hearing issues.

Frequently Asked Questions

1.

How to Get a Free NHS Hearing Aid?

To qualify for a free NHS hearing aid, they will need to have a hearing test and be diagnosed with hearing loss by an audiologist or hearing aid dispenser. Their level of hearing loss will be assessed to determine whether they are eligible for a free hearing aid under the NHS guidelines. Eligibility for a free hearing aid may depend on various factors such as age, degree of hearing loss, and impact on daily life.

2.

What Are the Five Components of a Hearing Aid?

The five main components of a hearing aid are:
 - Microphone: This component picks up sounds and converts them into electrical signals.
 - Amplifier: The electrical signals received from the microphone are then amplified to a suitable level.
 - Receiver (or Speaker): The amplified signals are then converted back into acoustic signals and delivered to the ear.
 - Battery: The hearing aid operates using energy from a battery, which supplies power to its various components.
 - Control Circuit: This component processes the signals and adjusts the various settings of the hearing aid to provide the optimal level of sound amplification based on the user's hearing needs.

3.

How Is the Cost of a Good Hearing Aid?

The cost of a hearing aid varies greatly and depends on various factors, such as the level of technology, the features offered, and the brand of the device. Generally, a good quality hearing aid costs anywhere from a hundred to several thousand dollars per ear. The average price for a hearing aid in the United States is around $2,400 per device, but prices can range from as low as $500 to as high as $7,000 per device. It is important to note that while price can be a consideration, choosing a hearing aid that is the right fit for their specific hearing needs and lifestyle is also essential. Working with a qualified hearing healthcare professional can help them find a hearing aid that is effective and appropriate for their needs.

4.

Do to Get PIP Points for a Hearing Aid?

PIP (Personal Independence Payment) is a benefit program that provides financial support to those with long-term disabilities or health conditions. To be eligible for PIP, an individual must have a long-term health condition or disability that impacts their ability to perform daily activities and mobility.
Having a hearing aid does not automatically qualify for PP. Nonetheless, if their hearing loss is severe and affects their daily activities and communication with others, they could potentially qualify for PIP. Eligibility for PIP is based more on how much the condition affects the person than the condition itself. If their hearing loss meets the criteria for PIP, they may be awarded points that contribute to the overall score needed to qualify for the benefit.

5.

How Much Time is Required to Get a Hearing Aid on the NHS?

The time takes to get a hearing aid can vary depending on the individual's circumstances and the local service provider. In some cases, a person may be able to receive a hearing aid immediately after their hearing assessment, while in other cases, they may need to wait several weeks or months to receive the hearing aid.

6.

What Type of Hearing Aid Is Good for Old Age?

The best hearing aid for an older adult depends on their level of hearing loss, lifestyle, and personal preferences. Some features that may be particularly beneficial for older adults include easy-to-use controls, comfortable fit, and compatibility with other devices. A hearing aid that amplifies speech in noisy environments and reduces background noise may also be useful. Additionally, the device should be durable, easy to maintain, and have a long battery life. Working with a qualified hearing healthcare professional can help ensure that the hearing aid chosen is appropriate for the individual's needs.

7.

Who Is Classified as Disabled With Hearing Loss?

In many countries, such as the United States and the United Kingdom, hearing loss is considered a disability under certain circumstances. Whether an individual with hearing loss is considered disabled depends on the severity of their condition and how much it impacts their daily life. In the United States, hearing loss is considered a disability under the Americans with Disabilities Act (ADA). It provides legal protections and accommodations for individuals with disabilities in various areas of life, such as employment, education, and public services.

8.

What Is the Average Lifespan of a Hearing Aid?

The average lifespan of a hearing aid can differ based on several factors, including the level of technology, frequency of use, and the quality of maintenance. On average, a hearing aid may last between three to seven years, but this can vary widely depending on the individual device and the user's habits. By engaging in regular maintenance and care, individuals can prolong the lifespan of their hearing aid. Recommended practices include regular cleaning, timely battery replacements, and storing the device in a dry, secure location when not in use.

9.

What Is the Easiest Hearing Aid to Use?

The easiest hearing aid depends on the individual's specific needs and preferences. However, some features that can make a hearing aid more user-friendly include automated settings that adjust to different listening environments, a simple user interface with large buttons or dials and wireless connectivity that allows for remote control and streaming from other devices. Additionally, a hearing aid that is comfortable to wear, easy to clean and maintain, and has a long battery life can make it easier to use.

10.

What Is the New Hearing Aid Law?

In the United States, the Over-the-Counter Hearing Aid Act of 2017 was signed into law by President Trump, which allows for the sale of certain types of hearing aids over the counter (OTC), without a prescription, to adults with mild to moderate hearing loss. The purpose of the law is to increase the accessibility and affordability of hearing aids for a broader segment of the population. The FDA has since been developing regulations and guidance on implementing the law, including requirements for labeling, testing, and manufacturing of OTC hearing aids.

11.

What Is the Markup on a Hearing Aid?

The markup on a hearing aid can significantly vary depending on factors such as the manufacturer, type of device, and the specific hearing healthcare professional or retailer involved in its sale. Some reports suggest that the markup on hearing aids can range from 100 % to over 1,000 %. The high markup on hearing aids can be attributed to various factors, such as the high cost of research and development, production, and marketing of the devices. Additionally, the cost of services provided by hearing healthcare professionals, such as fitting, programming, and ongoing maintenance, can also contribute to the total cost of a hearing aid.

12.

What Percentage of Hearing Loss is Legally Deaf?

Legal deafness is typically defined as a hearing loss of 90 decibels or greater in the better ear, based on pure-tone audiometry. This hearing loss is considered severe to profound and can result in significant communication difficulties, even with hearing aids or other assistive devices. It is important to note that the definition of legal deafness can vary depending on the country or organization. As an example, in the United Kingdom, legal deafness is characterized by a hearing loss of 70 decibels or more in the better ear. In Australia, legal deafness is defined as a hearing loss with 70 decibels or greater in the better ear for speech frequencies.

13.

What Are the Side Effects of a Hearing Aid?

Hearing aids are generally safe and effective devices, and most people who use them do not experience significant side effects. However, some potential issues can occur, including discomfort or irritation, feedback or whistling, occlusion or a plugged-up sensation, difficulty adjusting to new sounds, and problems with fit or comfort. Working with a qualified hearing healthcare professional can help address these issues and minimize potential side effects. It is important to regularly clean and maintain hearing aids to ensure proper function and avoid problems.

14.

Is It Good to Wear Hearing Aid All Day?

Whether or not they should wear a hearing aid all day depends on their hearing needs and preferences. Some people may find it beneficial to wear their hearing aids all day, while others may prefer to remove them during certain activities, such as sleeping or showering. Wearing a hearing aid all day can provide a more consistent and natural listening experience, allowing them to stay engaged in conversation and hear important sounds in their environment. However, it is important to take breaks from wearing hearing aids to rest their ears and prevent discomfort or irritation.

15.

Is it Fine to Use Only One Hearing Aid?

Using only one hearing aid is generally not recommended, particularly if they have hearing loss in both ears. Wearing two hearing aids can offer a more balanced and natural listening experience, enabling individuals to localize the source of sounds better, enhance speech comprehension in noisy environments, and reduce listening fatigue.
Dr. Satyabrata Panigrahi
Dr. Satyabrata Panigrahi

Audiology

Tags:

hearing aidhearing lossimpaired hearinghearing problems
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