What is a Hearing Aid?
A hearing aid is a small electronic device designed to help individuals with hearing loss. It amplifies sound to make hearing easier and enhance daily communication. Comprising a microphone, an amplifier, and a receiver, a hearing aid works as follows:
Microphone: Captures ambient sounds and converts them into electronic signals.
Amplifier: Boosts these electronic signals to increase sound volume.
Receiver: Converts the amplified electronic signals back into sound and delivers them to the ear.
These devices come in various styles and types to suit different needs and preferences.
Types of Hearing Aids
Hearing aids generally fall into three main types:
Behind-the-Ear (BTE): Worn behind the ear with a hard plastic case connected to an earmold inside the outer ear. Suitable for all ages and various degrees of hearing loss.
In-the-Ear (ITE): Fits entirely inside the outer ear. Ideal for mild to severe hearing loss and may include additional features like a telecoil for phone use and public announcements.
Canal Aids: Fit directly into the ear canal and come in two styles:
In-the-Canal (ITC): Custom-fitted to the ear canal.
Completely-in-Canal (CIC): Nearly invisible, designed for mild to moderately severe hearing loss.
Choosing the Right Hearing Aid
Selecting the best hearing aid depends on your specific hearing loss and lifestyle. Often, two hearing aids are recommended for those with bilateral hearing loss to provide a more natural auditory experience. When choosing a hearing aid, consider factors such as features, cost, warranty, and the reputation of the provider.
Key Questions to Ask Your Audiologist
Before purchasing a hearing aid, it's important to ask your audiologist the following:
What features are best suited for my hearing needs?
What is the total cost, and do the newer technologies justify a higher price?
Is there a trial period, and what fees are nonrefundable if returned?
How long is the warranty, and does it cover maintenance and repairs?
Can the audiologist adjust and repair the hearing aid? Are loaner aids available during repairs?
What instructions and support will I receive?
Hearing Aid Maintenance and Repair
Proper care can extend the life of your hearing aid. Here are some tips:
Clean Regularly: Wipe with a dry cloth daily and use a soft brush to remove earwax from the microphone and receiver.
Check Batteries: Ensure batteries are fresh and correctly installed; replace old or depleted ones.
Inspect for Damage: Look for cracks or loose parts and consult a professional if any damage is found.
Avoid Moisture: Store in a dry place and use a dehumidifier if necessary.
Check for Blockages: Ensure the sound outlet and microphone are free of obstructions.
Hearing Aid Costs
Here’s a breakdown of hearing aid types and their price ranges in Nepal:
BTE Hearing Aids: NPR 18,000 - NPR 500,000
RIC Hearing Aids: NPR 48,000 - NPR 500,000
IIC Hearing Aids: NPR 65,000 - NPR 600,000
ITC Hearing Aids: NPR 35,000 - NPR 600,000
Rechargeable Hearing Aids: NPR 85,000 - NPR 500,000
CIC Hearing Aids: NPR 35,000 - NPR 600,000
Accessories and Services
Batteries: NPR 350 per strip
Cleaning Kits: NPR 100 per strip
Domes and Wax Guards: NPR 1,000 per strip
Remote Controls: Price varies
Ear Moulds/Ear Plugs: NPR 1,500
Dryers and Dehumidifiers: NPR 500
Services:
Hearing Assessment: NPR 900 - NPR 11,000
Hearing Aid Trial and Fitting: Free
Speech and Language Therapy: NPR 800 per session
Cochlear Implant: Starting from NPR 1.2 million
Analog vs. Digital Hearing Aids
Analog Hearing Aids: Convert sound waves into electrical signals and amplify them. Models include Siemens Micon 5, Phonak Basic 200, and Beltone Legend 2.
Digital Hearing Aids: Convert sound into numerical codes for more precise adjustments. Notable models include ReSound LiNX Quattro, Oticon More, and Phonak Audeo Paradise.
Adjusting to Your Hearing Aid
Getting used to a hearing aid may take time. Regular use, practice with an audiologist, and learning how to operate, clean, and maintain your device are crucial steps.
Care and Maintenance
To ensure longevity:
Keep the device away from heat and moisture.
Clean it according to instructions.
Avoid using hair products while wearing it.
Turn it off when not in use.
Replace dead batteries immediately.
Keep batteries and small aids away from children and pets.
Advanced Hearing Aids
New types of implantable hearing aids include:
Middle Ear Implants (MEI): Attach to middle ear bones to amplify sound vibrations.
Bone-Anchored Hearing Aids (BAHA): Attach to the bone behind the ear and transmit vibrations directly to the inner ear.
Current Research
Ongoing research aims to improve signal processing, sound transmission, and device design. Innovations include advanced microphones and better fitting methods based on animal models.
More Information
For more details, visit Nepal Hearing and Speech Care Center at Room No. 526, Bluestar Complex, Thapathali, Kathmandu. Call 015331880 or 9801027180. We offer comprehensive services to help you choose the right hearing aid tailored to your needs and budget.
