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Severe Hearing Impairment: Consequences, Present Available Treatment and Future Expectations in the Management

  • Rajendra Prasad Sharma Guragain

Abstract

The World Health Organization (WHO) defines severe hearing impairment as hearing loss more than 60 dB in the better hearing ear. Few terms need explanation here. Decibel which is written as dB is the unit of intensity (how loud or how faint) of sound. According to the WHO the normal hearing is between 0 to 25 dB.

Keywords

Hearing Loss Hearing Impairment Cochlear Implant Cochlear Implantation Impaired People 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Tokyo 2004

Authors and Affiliations

  • Rajendra Prasad Sharma Guragain
    • 1
  1. 1.Department of ENT Head & Neck SurgeryTribhuvan University Teaching HospitalKathmanduNepal

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