Loss or difficulty in hearing is called Hearing Impairment
It is of different types
- Total hearing Impairment
- Partial Hearing Impairment
Total hearing Impairment
When a person is not able to hear completely is called Total hearing Impairment
This disability is generally form birth
Example
Those people who are deaf are said to have total hearing impairment
Partial Hearing Impairment
When a person has difficulty in hearing,it is called Partial Hearing Impairment
This disability is generally due to some disease,old age or some injury
Example
In Old age,some persons are not able to hear soft voices.They are able to hear only when spoken to loudly.This is a case of partial hearing impairment due to old age
Why do people who are deaf also have difficulty in speaking?
Because speech develops when we hear a sentence
We are able to speak a sentence only when we have once heard it
Those people who have not heard a sentence do not know how to speak it
How to help patients with hearing impairment
Hearing Aid devices help people hear
These hearing aids amplify the sound(increase the sound volume) and make it easier for people with partial hearing impairment to hear.
Use of Sign Language
We can use sign language to communicate with those people who are not able to hear completely(permanent hearing impairment)
Example
News in SIgn Language is Displayed on Doordarshan
Questions
NCERT Question 3 (g) - Mark True or False
Noise pollution may cause partial hearing impairment. (T/F)
