الفهرس 
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Abstract
It is not infrequent that the conventional
spectacles cannot correct the visual defects of
some patients. These patients are said to have
low vision, and they should use special devices
designed to help them to have a degree of useful
vision, so as to maintain the visual activities
of life. These devices are known as low vision
aids. These special devices are aiming at making
the partially sighted person feels that his handicap
represents a challenge that can be met, and a victory
that can be won.
When the subject of low vision aids is discussed,
so many questions are asked about their
types, indications for use, if they are really
satisfactory to the partially sighted, and what
are their limitations?
In this essay an effort to answer most of
these questions has been tried. Most of the available
low vision aids in use has been described, with
stress laid on their optical principles, advantages,
and limitations. Non-optical accessory visual
aids were also discussed.