With the advent of computers there has been an increased demand on the visual system which has led to series of visual symptoms, collectively known as the 'Computer Vision Syndrome' (CVs). The most common symptoms faced by computer users are eyestrain/eye tiredness, headaches, blurred vision, dry/irritated eyes, burning sensation neck/back aches, high light sensitivity, after images and double vision.
If you are a computer user and are facing such problems, you may be suffering from CVS. Do no wait till it becomes worse, visit your eye care professional and take appropriate advice. The following are some important instructions that, if followed, can prevent Computer Vision Syndrome (CVS).
Blinking
Blinking of eyes frequently is very important to maintain tears stability. Normal blink rate is 12 to 15 times per minute. Use of computers tends to decrease this normal blink rate, hence it is important to consciously blink frequently.
Monitor
Ideal Distance: 20 inches (50 cms) from the eye.
Ideal location: Centre of the monitor should be 6-8 inches below eye level.
Ideal Position: Straight ahead and tilted back 15 degrees.
Ideal Illumination: Higher contrast and lesser brightness is ideal which should be adjusted according to room lighting, so that the monitor does not act like a light source.
Font Size: Keep an adequate text size so that you can comfortably view it even from thrice the distance of your usual working distance.
Lighting Effect Prevent Glare: Avoid light shining directly on the eyes or on the monitor. Use curtains or blinds to control the quality of light entering the room.
Likewise, providing support for the arms, such as adjustable arm rests on the char, can also help keep the wrists straight. The keyboard and mouse should be located lower than the elbow.
Source: http://ezinearticles.com/
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