A hearing aid is a small electronic device that you wear in or behind your ear. It makes some sounds louder so that a person with hearing loss can listen, communicate, and participate more fully in daily activities. A hearing aid can help people hear more in both quiet and noisy situations.

Hearing aids are primarily useful in improving the hearing and speech comprehension of people who have hearing loss that results from damage to the small sensory cells in the inner ear, called hair cells. This type of hearing loss is called sensorineural hearing loss. The damage can occur as a result of disease, aging, or injury from noise or certain medicines.

A hearing aid magnifies sound vibrations entering the ear. Surviving hair cells detect the larger vibrations and convert them into neural signals that are passed along to the brain. The greater the damage to a person’s hair cells, the more severe the hearing loss, and the greater the hearing aid amplification needed to make up the difference. However, there are practical limits to the amount of amplification a hearing aid can provide. In addition, if the inner ear is too damaged, even large vibrations will not be converted into neural signals. In this situation, a hearing aid would be ineffective.

An audiologist is a hearing health professional with a Masters degree or clinical Doctorate degree who identifies, measures, and treats hearing loss. If you think you could benefit from a hearing aid, please contact our office at 334-702-4327. Both of our doctors of Audiology are trained in the assessment and treatment of hearing loss and tinnitus. They will be happy to discuss your concerns and treatment options with you.

There are three basic styles of hearing aids. The styles differ by size, their placement on or inside the ear, and the degree to which they amplify sound.

• Behind-the-ear (BTE) hearing aids consist of a hard plastic case worn behind the ear and connected to a plastic earmold that fits inside the outer ear. The electronic parts are held in the case behind the ear. Sound travels from the hearing aid through the earmold and into the ear. BTE aids are used by people of all ages for mild to profound hearing loss.A new kind of BTE aid is an open-fit hearing aid. Small, open-fit aids fit behind the ear completely, with only a narrow tube inserted into the ear canal, enabling the canal to remain open. For this reason, open-fit hearing aids may be a good choice for people who experience a buildup of earwax, since this type of aid is less likely to be damaged by such substances. In addition, some people may prefer the open-fit hearing aid because their perception of their voice does not sound “plugged up.”
• In-the-ear (ITE) hearing aids fit completely inside the outer ear and are used for mild to severe hearing loss. The case holding the electronic components is made of hard plastic. Some ITE aids may have certain added features installed, such as a telecoil. A telecoil is a small magnetic coil that allows users to receive sound through the circuitry of the hearing aid, rather than through its microphone. This makes it easier to hear conversations over the telephone. A telecoil also helps people hear in public facilities that have installed special sound systems, called induction loop systems. Induction loop systems can be found in many churches, schools, airports, and auditoriums. ITE aids usually are not worn by young children because the casings need to be replaced often as the ear grows.
• Canal aids fit into the ear canal and are available in two styles. The in-the-canal (ITC) hearing aid is made to fit the size and shape of a person’s ear canal. A completely-in-canal (CIC) hearing aid is nearly hidden in the ear canal. Both types are used for mild to moderately severe hearing loss.Because they are small, canal aids may be difficult for a person to adjust and remove. In addition, canal aids have less space available for batteries and additional devices, such as a telecoil. They usually are not recommended for young children or for people with severe to profound hearing loss because their reduced size limits their power and volume.

Hearing aid technology can range from very basic to complex. It is what’s inside the hearing aid, which influences the price. The more advanced we expect the hearing aid to perform, the more complex the technology needs to be. Often people compare the purchase of the hearing aids to cars. All of the cars driven should get you from point A to point B; however, it is along your trip that you may like to have some of the extra luxuries (leather, sunroof, etc…). All hearing aids are able to amplify sound, but more advanced hearing aids are able to make that listening experience more comfortable with clearer sound quality, multiple programs, greater noise reduction, and Bluetooth connectivity. Some hearing aids cost more than others, but just because something costs more does not mean it is best for the patient’s individual needs. Our audiologists will discuss your needs and listen to your concerns. They will then recommend the best level of technology to meet those needs. If their recommendation does not fit within your price range or budget, then they will find the best next option that will meet as many of your needs as possible.

The hearing aid that will work best for you depends on the kind and severity of your hearing loss. If you have a hearing loss in both of your ears, two hearing aids are generally recommended because two aids provide a more natural signal to the brain. Hearing in both ears also will help you understand speech and locate where the sound is coming from.

You and your Audiologist should select a hearing aid that best suits your needs and lifestyle. Price is also a key consideration because hearing aids range from hundreds to several thousand dollars. Similar to other equipment purchases, style and features affect cost. However, don’t use price alone to determine the best hearing aid for you. Just because one hearing aid is more expensive than another does not necessarily mean that it will better suit your needs.

A hearing aid will not restore your normal hearing. With practice, however, a hearing aid will increase your awareness of sounds and their sources. You will want to wear your hearing aid regularly, so select one that is convenient and easy for you to use. Other features to consider include parts or services covered by the warranty, estimated schedule and costs for maintenance and repair, options and upgrade opportunities, and the hearing aid company’s reputation for quality and customer service.

Before you buy a hearing aid, ask your Audiologist these important questions:

• What features would be most useful to me?
• What is the total cost of the hearing aid?
• Do the benefits of newer technologies outweigh the higher costs?
• Is there an adaptation period?
• What fees are nonrefundable if the aids are returned?
• How long is the warranty?
• Can it be extended?
• Does the warranty cover future maintenance and repairs?
• Can the audiologist make adjustments and provide servicing and minor repairs?
• Will loaner aids be provided when repairs are needed?
• What instruction does the audiologist provide?

Some insurance plans cover the purchase of hearing aids; however, every plan is different.  We recommend contacting your insurance company to see if you have coverage, or, we will be happy to check your benefits for you.  For those who do not have coverage for amplification or hearing devices, we offer financing through Care Credit.

We accept most major insurances: BCBS, BCBS Federal, Tricare, Medicare, Aetna, Cigna, and Medicaid. We also offer financing through Care Credit

Hearing aids take time and patience to use successfully. Wearing your aids regularly will help you adjust to them.

Become familiar with your hearing aid’s features. With your Audiologist present, practice putting in and taking out the aid, cleaning it, identifying right and left aids, and replacing the batteries. Ask how to test it in listening environments where you have problems with hearing. Learn to adjust the aid’s volume and to program it for sounds that are too loud or too soft. Work with your Audiologist until you are comfortable and satisfied.

You may experience some of the following problems as you adjust to wearing your new aid.

• My hearing aid feels uncomfortable. Some individuals may find a hearing aid to be slightly uncomfortable at first. Ask your Audiologist how long you should wear your hearing aid while you are adjusting to it.
• My voice sounds too loud. The “plugged-up” sensation that causes a hearing aid user’s voice to sound louder inside the head is called the occlusion effect, and it is very common for new hearing aid users. Check with your Audiologist to see if a correction is possible. Most individuals get used to this effect over time.
• I get feedback from my hearing aid. A whistling sound can be caused by a hearing aid that does not fit or work well or is clogged by earwax or fluid. See your Audiologist for adjustments.
• I hear background noise. A hearing aid does not completely separate the sounds you want to hear from the ones you do not want to hear. Sometimes, however, the hearing aid may need to be adjusted. Talk with your Audiologist.
• I hear a buzzing sound when I use my cell phone. Some people who wear hearing aids or have implanted hearing devices experience problems with the radio frequency interference caused by digital cell phones. Both hearing aids and cell phones are improving, however, so these problems are occurring less often. When you are being fitted for a new hearing aid, take your cell phone with you to see if it will work well with the aid.

Proper maintenance and care will extend the life of your hearing aid. Make it a habit to:

• Keep hearing aids away from heat and moisture.
• Clean hearing aids as instructed. Earwax and ear drainage can damage a hearing aid.
• Avoid using hairspray or other hair care products while wearing hearing aids.
• Turn off hearing aids when they are not in use.
• Replace dead batteries immediately.
• Keep replacement batteries and small aids away from children and pets.

Researchers are looking at ways to apply new signal processing strategies to the design of hearing aids. Signal processing is the method used to modify normal sound waves into amplified sound that is the best possible match to the remaining hearing for a hearing aid user. NIDCD-funded researchers also are studying how hearing aids can enhance speech signals to improve understanding.

In addition, researchers are investigating the use of computer-aided technology to design and manufacture better hearing aids. Researchers also are seeking ways to improve sound transmission and to reduce noise interference, feedback, and the occlusion effect. Additional studies focus on the best ways to select and fit hearing aids in children and other groups whose hearing ability is hard to test.

Another promising research focus is to use lessons learned from animal models to design better microphones for hearing aids. NIDCD-supported scientists are studying the tiny fly Ormia ochracea because its ear structure allows the fly to determine the source of a sound easily. Scientists are using the fly’s ear structure as a model for designing miniature directional microphones for hearing aids. These microphones amplify the sound coming from a particular direction (usually the direction a person is facing), but not the sounds that arrive from other directions. Directional microphones hold great promise for making it easier for people to hear a single conversation, even when surrounded by other noises and voices.