Hearing loss is a partial or total inability to hear. Hearing loss may occur in one or both ears. In children, hearing problems can affect the ability to acquire spoken language, and in adults it can create difficulties with social interaction and at work.
Hearing loss may be caused by a number of factors, including: genetics, ageing, exposure to noise, some infections, birth complications, trauma to the ear, and certain medications or toxins.
There are different types of hearing loss: conductive hearing loss, sensorineural hearing loss and mixed types.
➤ Sensorineural hearing loss
Sensorineural hearing loss is occurs when the inner ear nerves and hair cells are damaged. This impacts the pathways from your inner ear to your brain and can be treated and helped with the use of hearing aids.
➤ Conductive hearing loss
Conductive hearing loss is typically the result of obstructions in the outer or middle ear — perhaps due to fluid, earwax or ear formation. This obstruction prevents sound from getting to the inner ear and can often be treated surgically or with medicine.
➤ Mixed hearing loss
Mixed hearing loss is a combination of sensorineural and conductive hearing loss.
➤ Mild hearing loss - Range from 25 dB to 40 dB HL.
➤ Moderate hearing loss – Range from 41 dB and 55 dB HL.
➤ Moderately severe hearing loss- Range from 56 dB to 70 dB HL
➤ Severe hearing loss – Range from 71 dB to 90 dB HL.
➤ Profound hearing loss – Range from 90 dB HL or more.
A hearing aid is a device designed to improve hearing by making sound audible to a person with hearing loss.
Digital hearing aids are combination of tiny, lightweight and sophisticated nanochip which analyse speech and other environmental sounds. The processing of sound during the amplification process which improve their performance in certain listening situations.
This provide greater flexibility while programming so that the transmitted sound can be matched to the needs for a specific pattern of hearing loss.
Digital hearing aids also provide program memories which help Audiologist to provide more precise and accurate gain as per the hearing loss.
Now days wireless hearing aids changed the way of hearing provides ease to communicate with Mobile/TV/ Laptop aswell.
➤ BTE- Behind the Ear
➤ RIC- Receiver in the canal
➤ CIC- Completely in canal
➤ IIC- Invisible in canal
➤ ITC- In the canal
➤ ITE- In the Ear
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