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Computer Vision Syndrome – Symptoms And Cure
He sought expert opinion for his eye problem. We did a detailed evaluation and came to the conclusion that he has Computer Vision Syndrome.
What
is
Computer
Vision
Syndrome?
The
term
CVS
includes
symptoms
like
eye
irritations,
foreign
body
sensations
in
the
eye,
redness,
eye
dryness,
headaches,
difficulty
to
focus,
blurred
vision,
and
even
non-ophthalmic
symptoms
like
backache,
neck
pains
and
fatigue
that
are
experienced
by
people
who
use
the
computer
for
long
periods
of
time.
Computer
Vision
Syndrome
or
CVS
has
been
a
term
long
familiar
in
IT
firms
and
among
computer
enthusiasts.
CVS
is
not
a
diagnosis;
rather,
it
is
a
term
used
to
represent
a
variety
of
symptoms
felt
by
persons
who
work
on
computers
for
long
periods
of
time.
CVS
has
no
diagnostic
criteria
and
no
accepted
protocol
for
treatment.
What
Causes
Computer
Vision
Syndrome?
The
causes
for
CVS
are
unclear
but
the
association
with
long
periods
of
computer
usage
point
to
some
factors
that
may
be
termed
as
risk
factors
for
CVS.
These
are:
- Uninterrupted work in front of the computer
- Infrequent blinking of the eyes
- Dry Eye
- Incorrect positioning of the computer monitor
- Un-ergonomic positioning of the table / chair
- Improper lighting conditions
What
are
the
common
symptoms
of
CVS?
Blurred
vision
and
headaches
are
very
commonly
reported.
Another
common
symptom
is
a
feeling
of
“tiredness" of
the
eye.
Some
complain
of
the
delay
in
re-focusing
the
eye.
Another
group
of
people
complain
of
fatigue,
neck
pain,
and
backache.
What
happens
to
the
eye
in
CVS?
Most
of
the
eye
problems
reported
by
computer
professionals
point
to
a
condition
called
“Dry
Eye".
Dry
Eye
refers
to
a
condition
where
the
moisture
content
of
the
eye
reduces
and
patients
experience
sensations
like
“sand
inside
the
eye",
pain,
blurred
vision,
etc.
This
is
seen
in
women
and
is
due
to
decreased
production
of
tears
that
are
needed
to
moisturize
the
eye.
The eye requires adequate moisture for several reasons:
- A tear film is necessary for clear vision
- Moist eyes maintain the oxygen content in the cornea
- Moist eyes do not allow dust to accumulate
In
CVS,
the
tear
production
is
normal.
CVS
is
seen
commonly
in
males;
though
there
is
no
reason
other
than
the
fact
that
more
males
work
in
the
IT
sector.
So,
what
is
wrong?
The
only
explanation
is
that
the
tears
/
moisture
evaporates
quickly
and
is
not
replenished.
Why
does
this
happen?
Normal
people
blink
their
eyes
6-8
times
a
minute.
The
blinking
motion
has
several
functions.
Each
blink
produces
a
new
layer
of
tears.
This
also
clears
the
older
layer
and
removes
any
dust
form
the
eyes.
A
person
intently
looking
at
a
computer
screen
blinks
less
often.
Some
people
have
been
noted
to
blink
as
low
as
2
times
per
minute.
Two
things
happen
due
to
this
low
blink
rate:
New
tear
film
is
produced
at
a
much
reduced
rate
The
longer
the
eye
remains
without
a
blink,
the
more
tears
get
evaporated
from
the
surface
of
the
eye.
What
is
the
solution?
CVS can be prevented by following some simple guidelines:
- Most important factor: Position your computer monitor below your eye level. Watch this video (click here) for more accurate information on why this is important and how to do it
- Blink often
- Every 20 minutes, take your eyes off the monitor and try to focus at a distance of more than 20 feet for at least 20 seconds (20:20:20 rule)
- Every 20 minutes, close your eye for at least 20 seconds (20:20 rule)
- Avoid any source of glare on your monitor (from sunlight or a overhead office light)
- Use moisturizing drops (consult your eye surgeon to find out which drop best suits you)
- Use a prescription glass if you have been prescribed one by your eye surgeon
- If you are above 40 and are using bifocal glasses, this may cause neck pain. Ask your eye surgeon to prescribe a progressive glass that will suit your type of work.
- Most importantly, take a break every 3-4 hours. And have plenty of fruits and vegetables.
What
you
should
do:
Contact
Dr.
Ashley
Mulamoottil,
who
is
the
Medical
Director
&
Chief
Surgeon
in
Mulamoottil
Eye
Hospital
&
Research
Center,
Kozhencherry,
Kerala.
You
can
also
interact
with
him
from
his
Facebook
page.
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