Computer Monitor Eye Strain - What it is & How to Deal With it [aboutcomputer99.blogspot.com]

Computer Monitor Eye Strain - What it is & How to Deal With it [aboutcomputer99.blogspot.com]

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Before print was invented there were no spectacles, no eye glasses - they were invented in response to the visual problems caused by the printed word. The digital world is placing new and different demands on our eyes. Pixels demand a different focus from the eye than print.

Computer monitors cause eye strain (and this includes those on PDAs, cell phones and other handheld electronic devices) for a number of reasons. For instance, computer monitors continuously refresh, or redraw, the image a user sees. Paper, on the other hand, is a static display medium; once drawn, the image does not change. As the computer monitor refreshes, the eye compensates for the quickly changing imaging. The net result is that the eye strains to maintain constant focus on the screen.

Pixels don't have contrast or well-defined edges. They are bright at the center and diminish in intensity toward their edges, which makes it very difficult for the eyes to maintain focus and remain f ixed onto these images. Printed materials are typically dense black characters with well-defined edges against a white background and our eyes can easily maintain focus on these.

Our eyes tend to stay open for long periods of time when focusing on a computer monitor, they can dry out quickly, causing damage. Our eyes also strain to regain focus. This continuous flexing of the eyes' focusing muscles creates fatigue and the burning, tired-eyes feeling that is so common after spending time in front of the computer.

We tend to blink less often than normal while viewing a computer monitor or concentrating on near objects. Staring and decreased frequency of blinking can cause the eyes to dry out leading to redness, burning sensation, soreness, stinging, itchiness, and dryness. Focusing the eyes on a computer monitor for uninterrupted periods of time causes CVS (Computer Vision Syndrome).

CVS refers to the visual problems experienced by computer use. CVS encompass es different symptoms, and treatments. In addition to the eye problems mentioned earlier there are also vision problems including blurred vision (both near and far), difficulty changing focus, double vision, glare, flickering sensations, and temporary changes in color perception. And there is general discomfort including headaches, neck tension or pain, shoulder tension or pain, back pain, excessive fatigue, irritability, and drowsiness.

These symptoms can be further aggravated by improper lighting conditions such as computer glare, dry, hot air generated by computer monitors hitting the eyes, and dust particles emitted by the electrostatic field surrounding most computer monitors.

How to Deal With CVS (which includes computer monitors eye strain)

There is one simple way to reduce all these symptoms. And there are many alternative routes. You can easily find lists of 5, 6, 7, 10 ways to reduce computer eye strain from using eye drops to the 20/20/20 rule (look at something 20 feet away for 20 seconds every 20 minutes). They all work to some degree...if you can remember to apply them consistently.

I can imagine similar advice for dealing with sun damage to eyes before we started using sunglasses - go into shaded areas regularly; hold hand up to block sunlight directly hitting the eyes; remember to wear a hat with a brim half the length of your face when out in the sun. But being the problem solvers we are we came up with the solution of sunglasses.

Similarly, in the digital world, the simple solution is to wear digital eyewear when working at a computer monitor or using an electronic handheld device. Digital eyewear will eliminate the constant refocusing effort that the eyes go through when viewing the screen. 75% of computer users need computer eyeglasses because our eyes react differently to the stimulus of a computer according to the Macular Degeneration Support organization.

Related Computer Monitor Eye Strain - What it is & How to Deal With it Topics

Question by : Where should I shop to get a great deal on a computer monitor? I don't want to spend too much. I am kinda broke from Christmas. Thanks for your help. Best answer for Where should I shop to get a great deal on a computer monitor?:

Answer by froggy
Ebay has cheap prices.

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