Hearing Loss
There are defined degrees of hearing loss:
Mild hearing loss
- People who suffer from mild hearing loss have difficulties keeping up with conversations, especially in noisy surroundings. The most quiet sounds that people who suffer from mild hearing loss can hear with their better ear are between 25 and 40 dB SPL.
Moderate hearing loss
- People who suffer from moderate hearing loss have difficulty keeping up with conversations when they are not using a hearing aid. On average, the most quiet sounds heard by people with moderate hearing loss with their better ear are between 40 and 70 dB SPL.
Severe hearing loss
- People who suffer from severe hearing loss depend on powerful hearing aid. However, they often rely on lip-reading even when they are using hearing aids. The most quiet sounds heard by people with severe hearing loss with their better ear are between 70 and 95 dB SPL.
Profound hearing loss
- People who suffer from profound hearing loss are very hard of hearing and they mostly rely on lip-reading and sign language. The most quiet sounds heard by people with profound hearing loss with their better ear are from 95 dB SPL or more.
Read more about this topic: Auditive Perception
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