Computer Vision Syndrome
What is computer vision syndrome (CVS)? The American Optometric
Association (AOA) has defined computer vision syndrome as "eye
and vision-related problems related to near work experienced during computer
use". The National Institute for Occupational Safety and
Health (NIOSH) defines it as "eye strain associated with
prolonged computer use."
By some estimates this condition effects over 125 million
computer users . The usual eye
fatigue symptoms are tired, burning, watery,
red, sore or itchy eyes,
blurred or double vision, back, neck or shoulder pain as well as eye
strain headaches. Any of these symptoms could indicate the possibility
that you are getting this condition to some degree. The AOA estimates
that 90% of all computer users will experience CVS. Nearly everyone
that uses a computer for as little as 2 hours
a day will notice some of these symptoms sooner or later.
The primary cause results from staring at the computer screen too long
and not taking enough breaks. All muscles need a break every so often
so they can rest, relax and recover, or they will tire quickly. This
can become uncomfortable and sometimes even painful if the muscles tense
up and spasm. Only a few seconds rest will allow the muscles to relax
and give relief. Eye muscles are no different so when you focus on the
screen too long the eye muscles can also tire and tense up.
Proper computer glasses could be the answer. They work
by doing the focusing for you allowing the eye muscles to stay relaxed
the entire time you
are on the computer. Frequent breaks are no longer required because the
eyes stay at rest and can now focus on the computer much longer without
causing eye fatigue and eye strain. This then solves the problem of computer
vision syndrome.
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