14. Explain how optical and non-optical aids help visually challenged persons todevelop their skills to a higher level.

14. Explain how optical and non-optical aids help visually challenged

1.	14. Explain how optical and non-optical aids help visually challenged persons todevelop their skills to a higher level.
Answer» <p> these is a basic difference to understand the optical and non optical </p><p>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.</p><p>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 .</p><p>HOPE IT WILL BE HELPFUL TO YOU</p>