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Hearing 

Hearing
Chapter:
Hearing
Author(s):

Linda M Luxon

DOI:
10.1093/med/9780199204854.003.240603_update_001

Update:

Chapter reviewed, minor changes made, further reading updated.

Updated on 28 Nov 2012. The previous version of this content can be found here.
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date: 22 October 2017

Hearing loss is the most common sensory impairment. The World Health Organization has estimated that at least 275 million people are affected worldwide, as are 17% of the adult population in the United Kingdom, three-quarters of these being over 60 years of age.

Clinical examination and investigation—examination includes visual inspection of the anatomy of the external ear and tympanic membrane, and tuning-fork tests to distinguish conductive from sensorineural hearing loss in some cases. Audiological investigations (1) quantify audiometric thresholds at each frequency; (2) differentiate conductive from sensorineural defects; (3) differentiate ...

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