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Low Vision Aids
1. Q: what is Low Vision
A:
Low vision is a visual condition that
affects millions
especially seniors. Simply,
it is a degree of
visual impairment that
cannot be adjusted
completely to normal
vision, even with the
use of traditional eyeglasses or contact
lenses (According to WHO:
a man with low vision will have best
corrected vision of less than 20/60 in
the better eye).
In other word; Low vision could
be defined
as best corrected vision which is
insufficient to do what your patient wants to do.
2.Q: Are there a
difference
between blindness and
low vision?
A:
Low vision should
not be confused with blindness. Low vision patients still have
some ability to see and the condition can
often be improved under the care of a low
vision specialist who will prescribe aids to
assist a low vision patient.
3. Q: What are common symptoms o f low vision?
A:
Although the degree of impairment
varies, from
one individual to another, and
may or may not affect both eyes, Low Vision
most often is a loss
of
central or reading
vision and loss of side or
peripheral vision. Other symptoms of
low vision may include
reduction or loss of
color vision, difficulty
in adapting ,
from light to dark environments,
and reduction of
the ability to, focus.
4.Q: What are
causes of low
vision?
A:
A variety of disorders may lead to low
vision including
birth defects and injury,
disease
(particularly diabetes, glaucoma,
inoperable cataract), trauma and aging.
The most common condition that causes
low vision in seniors is
macular degeneration .
Simply; this condition results from a
breakdown of the macular cells that
causes difficulty with reading
and close work Vision.
5. Q: Is there a
special examination
for the low vision patient?
A:
The "low vision examination"
should be much more extensive than a
regular eye examination. Often
the initial examination will
last more than one hour (or can be done
in two visits). Low vision doctor will need to
ask many lifestyle questions
in order to
determine the demands of your patient vision.
r
The amount of remaining vision must be
carefully,
determined using specialised
charts which are closer to the patient, and
Have more gradations than the standard
projected chart. The patient
is instructed to use peripheral
vision during testing, since
central vision is often da
r
Then the amount
of
magnification needed
to do the desired
tasks must be determined
for far tasks like
driving,
near tasks like
reading and intermediate tasks like computing..