Who are Visually Impaired?

Those people who have decreased ability to see are called visually impaired people

Some people cannot see at all or some can see but not clearly

Some people are visually impaired by birth while others become visually impaired due to some accident




How do Visually Impaired People carry out their routine tasks

Develop Other Senses

They try to develop their other senses more sharply

Example

They are able to recognize people and objects by touching or listening 

 

Use optical and Non Optical Aids

They use different optical and non optical aids to read and write

 

 

Example of Different Optical and Non Optical Aids for Visually Impaired

 

Optical

Non Optical  Aids

Aids Relating to Sight

Aids not directly related to sight

Example

Contact Lens

Bifocal Lens

Magnifier

Telescopic Aids

Auditory Aids

Aids Related to Hearing 

Example - Audio CD,Cassettes,Talking Book


Tactual Aids

Aids which help in reading and writing

Example - Braille Water Slate,Stylus


Electronic Aids

It means those aids which work with help of electricity 

Example - Talking Calculator, Computer


Visual Aids

The magnify words and give proper intensity of light (so it is easy to read)

Optical and Non Optical Aids - Teachoo.jpg

Braille System

It is a system by which visually challenged persons(blind persons) can read and write

It was developed by Louis Braille in 1821(he was himself visually challenged)

There are 2 vertical rows of 3 dots each.

There are 63 different dot patterns.

Each dot pattern represent different characters

 

Example

Cat and Comma - teachoo.png

Different Braille Alphabets are

Braille Alphabets - Teachoo.png

 

  1. Class 8
  2. Chapter 16 Class 8 - Light

About the Author

CA Maninder Singh's photo - Expert in Practical Accounts, Taxation and Efiling
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 9 years. He also provides Accounts Tax GST Training in Delhi and Pune.