Question

Explain how optical and non optical aids help visually challenged person to develop their skills to a higher level.​

Answer 1

Answer:

these is a basic difference to understand the optical and non optical

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 .

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Answer 2

Special optical devices called low vision aids often can enable people to use their remaining vision more effectively and do things they thought were no longer possible . These devices include customised magnifiers for reading , computerised text to speech devices .