Lack of humidity in your home or workplace may be the source of your dry eyes. Get an hygrometer to measure the humidity, then add a humidifier to raise the level.
Computer use or other close work where you need to concentrate can cause or exacerbate dry eye syndrome. When you concentrate you don't blink as often and therefore your eyes aren't being lubricated. People blink about 22 times a minute while relaxing, 10 times while reading, but only 7 times while working at a computer. Try to blink more frequently and take frequent breaks or use artificial tears.
Contact lenses are another possible cause. Talk to your eye specialist.
Some commonly used drugs, such as antihistamines, oral contraceptives and antidepressants, can cause dry eye problems that damage eye tissue and the cornea. Speak to your optometrist if you are taking any of these drugs so that he can monitor your eye health. Some symptoms might be if your eyes are red, irritated or scratchy, or if your vision is blurred.
Warm compress Soak a washcloth in hot water and place it over your eye for 10 minutes two times a day. This method may stimulate your glands to produce more oil, which will keep your tears from evaporating as quickly.