Question

Explain how optical and non-optical aids help visually challenged persons to
develop their skills to a higher level. in short answer .​

Answer 1

Explanation:

Non optical aids:-

these often include (1) tactual aids ( using sense of touch ) . the visually impaired can learn to read and write by using a special touch system called the Braille . this system make use of raised dots on a paper . (2) auditory aids ( using sense of hearing ) include audio cassettes, tape recorders, audio CDs, audio books and electronic devices like computer / calculators / closed circuit television. these , with the help of a software programme , can transfer text files into sound.

optical aids :-

these include lenses and telescopic aids. while suitable lens combinations are used to rectify visual limitations, the telescopic aids can help to view class demonstrations and the blackboard .

Answer 2

Answer:

In Non-optical aids,they include (i) tactual aids (the student can use their sense of touch ; then the visually impaired can learn to read and 2write by using a special touch system called Brallie. This make them use of raised dots on a paper.)