In this hi-tech
era we use computers for every work and overlook the circumstances that can
influence our health. More than 50 percent of computer users experience
eyestrain, headaches, blurred vision and other visual symptoms. Eyes are one of
the important organs of our body and we should never ignore them. According to OSHA (Occupational Safety & Health
Administration) on November 19, 1999, "Computer vision syndrome (CVS),
defined as a complex of eye and vision problems that are experienced during and
related to computer use, is a repetitive strain disorder that appears to be
growing rapidly.
Causes include:
- Extending
short distance focusing
- Reduced
average blinking time
- Staring at a monitor for long
periods of time.
- Concentrating on a certain
task for a long period of time.
- Poor
lighting
- Poor
Posture
- Excessive
glare
Symptoms:
- Eyestrain
Blurred vision
-
Headaches
-
Red, dry or burning eyes
-
Increase in nearsightedness
-
Slow refocusing
-
Difficulty seeing clearly at a
distance after prolonged computer use
-
Excessive fatigue
-
Neck, shoulder and back pain
-
Occasional double vision
-
Changes in color perception
Prevention: There is no
treatment for eye strain however by opting small changes in your lifestyle you
can provide rest to your eyes.
-
Minimize the glare from the
screen.
-
Position yourself so the centre
of the screen is below the straight ahead seeing position and angle the monitor
back slightly.
-
Look away from the screen and
focus on an object in the distance every fifteen minutes.
-
Re-adjust your lighting system
at home and at work. Make sure the light is directed right at what you are
doing.
-
When working outside, make sure
you always wear protective sunglasses to avoid the glare of the sun.
-
If you are at work, try to focus
on another task for a few minutes every hour. Try a relaxation exercise time to
time. Short, frequent breaks are better than longer, less frequent breaks.
-
The computer screen should be
slightly below eye level (about 20 degrees).
-
The screen brightness and
contrast should be adjusted by the operator for the maximum viewing comfort.
-
Try not to face toward windows
or bright light sources.
-
Replace your old tube-style
monitor (called a cathode ray tube or CRT) with a flat-panel liquid crystal
display (LCD). As LCD screens are easier on the eyes and usually have an
anti-reflective surface.
-
Clean the screen regularly as
they attract dust.
Eye Exercise: Eye exercise is very beneficial to protect your eyes.
- Look away from your computer every 20 minutes and gaze at a distant
object outside or down the passage.
-
The palming exercise will teach you to relax your eyes, which in
turn will bring healthy energy to your eyes. Rub your hands together until they
feel warm. Then place your cupped hands over your closed eyes softly. The
fingers of each hand should overlap and rest gently on the center of your
forehead.
-
Hold your thumb six inches from your nose. Focus on your thumb. Take
one deep breath and exhale slowly. Then focus on an object about 10 feet away.
Take another deep breath and slowly exhale.
-
Sitting or standing at one end of a room, let your eyes scan around
the edges of objects in the room.
-
Place a bowl of hot water (should not be very hot) and a bowl of
cold water (ice cold) in front of you. Put a wash cloth in each bowl. Place the
wash cloth from the bowl of hot water against your closed eyes for 30 seconds.
Then do the same with the wash cloth from the bowl of cold water. Finish by
gently massaging your closed eyes with a dry towel.
If you are using computers excessively, then have a
comprehensive eye examination periodically. Follow these small tips and
gift yourself a healthy eye to visualize this beautiful world.
(Sources: visionworksusa.com, allaboutvision.com, naturaleyecare.com, eyestrainsoftware.com, hubpages.com)