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10.6.7 Impairment of Hearing


The effects of deafness will depend on:

  • the severity of the loss
  • the rate of the loss
  • whether one or both ears are affected, and
  • the age of onset of deafness.

Hearing loss is classified into three forms of deafness:

  • conductive
  • sensory-neural, and
  • mixed conductive and sensory-neural.