Sandbox:dinesh: Difference between revisions
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==Classification== | ==Classification== | ||
[Deafness] may be classified according to WHO into 5 subtypes/groups: | |||
*Mild- Hearing losses between 26 and 40 dB | |||
*Moderate- Hearing losses between 41 and 55 dB | |||
*Moderately severe- Hearing losses between 56 and 70 dB | |||
*Severe - Hearing losses between 71 and 90 dB | |||
*Profound - Hearing losses greater than 91 dB | |||
==Pathophysiology== | ==Pathophysiology== | ||
Revision as of 18:27, 21 April 2021
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Introduction
Deafness is a partial or total inability to hear. WHO defines deafness as hearing threshold of 20dB or better in both ears.
Classification
[Deafness] may be classified according to WHO into 5 subtypes/groups:
- Mild- Hearing losses between 26 and 40 dB
- Moderate- Hearing losses between 41 and 55 dB
- Moderately severe- Hearing losses between 56 and 70 dB
- Severe - Hearing losses between 71 and 90 dB
- Profound - Hearing losses greater than 91 dB