Do Computer Screens Cause Eye Dryness?

2010-02-22 03:32:44

Do Computer Screens Cause Eye Dryness
Who of us did not feel at one time of dryness in the eye, and who of us is not aware of the function of tears in protection against eye dryness? Is there a direct link between eye dryness and sitting for long hours before the computer or TV?
A number of studies have addressed eye dryness. These studies have come up with guidelines on how to prevent eye dryness. In today’s world, eye dryness is one of the diseases that affect the eyes and affect the daily life of the patient. Till now there is no final treatment for this disease. At the same time understanding of the disease is increasing day by day as a result of continuing researches which positively reflected on our practical knowledge and awareness of the measures that should be taken before the eye is affected by dryness.
What many people do not aware of is that natural eye tears play a vital function in helping to lubricate the eyeball and keep it clear of irritants. Tears secrete antibacterial agents that break down harmful bacteria before they can cause infection. They also provide oxygen and nutrients to the cornea, or surface, of the eyeball which has no blood supply. Without tears, the eye can become dry, red and inflamed. There is also a risk that the cornea will become scarred.
Among the symptoms of dry eye: stinging, burning, scratchiness, stringy mucus, and excess irritation from smoke are the usual symptoms.
To prevent eye dryness we should not expose to hot weathers and avoid humidity. Some eye exercises could be practiced as well. These exercises include closing the eye every five seconds for two minutes, five times a day, wearing of protective glasses to prevent wind and dust. It is important not to sit before computers for long time and not to stare on TV screen without blinking and also not to sit directly before air conditioners and wind sources.
For treatment of eye dryness, eyedrops to lubricate the eyes and replace the missing moisture are recommended.
Ophthalmologists advise people not to sit before computer and TV screens for long hours. Consider changing the settings to show larger text on every site accessed on your browser. Suitable light should be considered as well. It is also advisable that reading glasses should be used and that every 30 minutes, one should look at an object 10 feet away for 10 seconds to get them adjusted to long-distance too, so you are ready when you get off the computer. People blink at least half as much as normal when staring at the computer screen, because people usually squint and your eyes are not made for looking at monitors. It may be hard to remember to do this constantly, so every now and then you can close your eyes for a few seconds. Researchers have said that it was not proven yet that computer or TV radiations affect the eyes .What happens is vision exhaustion which can be avoided by following guidelines mentioned above and visit an ophthalmologist whenever it's necessary.