Why are some people visually challenged?


Why are some people visually challenged?



If any one of the cornea, eye lens, retina, and
optic nerve of a person fails to perform its
function, the person will not be able to see.
Visual disability could be from birth or it could
be caused by a disease. Some people have partial
vision while some have no vision at all.
The other senses of a visually challenged person
are exceptionally sharp, especially the sense
of hearing or touch. They use these senses to
know about the world around them and it helps them attain success in all spheres of life. There
are a number of visually challenged people who
have achieved great success in different walks
of life.



Point we discuss

1. causes of visual impairment

2. types of visual impairment

3. visual impairment disability




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