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Diagnostic Centres are having Audiometry facility. Audiometric tests determine a subject's hearing levels with the help of an audiometer, Results of audiometric tests are used to diagnose hearing loss or diseases of the ear, and often make use of an audiogram.

Hearing loss classification

The primary focus of audiometry is assessment of hearing status and hearing loss, including extent, type and configuration.

  • There are four defined degrees of hearing loss: mild, moderate, severe and profound.
  • Hearing loss may be divided into four types: conductive hearing loss, sensorineural hearing loss, central auditory processing disorders, and mixed types.
  • Hearing loss may be unilateral or bilateal, of sudden onset or progressive, and temporary or permanent.

Hearing loss may be caused by a number of factors including heredity, congenital conditions, age-related (presbycusis) and acquired factors like noise-induced hearing loss, ototoxic chemicals and drugs, infections, and physical trauma.

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