Speech & Hearing Disability


Definition of Hearing

A persons with hearing impairment having difficulty of various degrees in hearing sounds is an impaired person.

Categories of Hearing Impairment

View the table showing the categories of Hearing Impairment

  1. Pure tone average of learning in 500, and 2000 HZ, 4000 HZ by conduction (AC and BC ) should be taken as basis for consideration as per the test recommendations.
  2. When there is only as island of hearing present in one or two frequencies in better ear, it should be considered as total loss of hearing.
  3. Wherever there is no response (NR) at any of the 4 frequencies (500, 1000,2000 and 4000 HZ), it should be considered as equivalent to 100 dB loss for the purpose of classification of disability and in arriving at the average.

Process of Certification

A disability certificate shall be issued by a Medical Board duly constituted by the Central and the State Government. Out of which, at least, one member shall be a specialist in the field of ENT.

Click to view the Certificate.