Computer Vision Syndrome

More than 90% of Urban Indians use the computer. With more and more use of Computers, computer related eye problems are on the rise. If you get headache or Eye strain at the end of the day after using the computer for long hours, or if you have difficulty in focussing distant objects, you may be suffering from Computer Vision Syndrome or CVS.

Computer vision syndrome is a serious problem for the millions of Indians who spend hours in front of a computer every day. Aside from the physical discomfort you may experience from symptoms, computer vision syndrome can have a lasting effect on your vision. There are several preventive steps that you should take if you frequently use a computer.

According to statistics from India Today Magazine
1) 98% of professionals in urban India show sympoms of CVS.
2) 16 new patients are treated each month by Ophthalmologists.
3) 40 million Indians surf the net and 180 million use cell phones everyday.
4) 90% of urban Indians use computers over 4 hours a day.

If someone spends more than 3 hrs infront of the computer, he may suffer from CVS.

Headache
Neck pain and Body pains.
Inability to focus.
Redness of the Eyes.
Blurred vision.
Double Vision.

CVS is caused by our eyes and brain reacting differently to characters on the screen than they do to printed characters. Characters ( Pixels) on a computer screen lack the contrast or well-defined edges that printed characters have. Because the color intensity of digital characters diminishes around the edges, it is difficult for eyes to remain focused. Having to continually refocus on digital text fatigues the eyes and can lead to burning or tired eyes.

New demands on the Eye :


Demand 1 : Very fast and jumpy movements from one eye position to another- between document screen and key board. This puts a lot of strain on the six muscles holding the Eye.

Demand 2 : Focussing for too long, too close and too often. This puts strain on the ciliary muscle which controls focussing of the eye and the ciliary muscle is made to work harder.

Demand 3 : Reduced Blinking rate, leads to dry, itchy , red and burning eyes.

1) The monitor should be between 16-30 inches away from your eyes. Adjust the height of the monitor too. The top of the monitor should be 10-20 degrees below eye level and the screen should be 4-8 inches lower. Tilt up the screen slightly as if you are reading a book or a magazine.
2) Occupational or Computer Eye Glasses with Anti reflection coatings helps.
3) Windows and light sources should be on the side of the monitor.
4) Blink rapidly atleast 10 times a minute.
5) Feet should be firmly on the ground, hips , knees and arms should be straight at right angles . Neck should not tilt beyond 0-15 Degrees.

Treatment
Computer Eye Glasses.
Ergonomics.
Lubricants.
Computer Eye Glasses.