1) Sit facing the screen directly; ensure that the screen is not at an angle.
2) Once every 15-30 minutes it is important that gamers look away from the screen and shift eye focus to objects at a distance. .
3) Sit at a reasonable distance from the screen.
4) Use the settings on the screen to reduce the glare to a comfortable level.
5) Once in a while it is important to look away from the screen and blink your eyes to lubricate it.
6) Ask your eye doctor to prescribe artificial tears that will moisten your eyes.
7) At least 6-8 times a day, rub the palms of your hands together and press then on your eyes hold for a few minutes.
8) Greenery soothes eyes, so glance as often as you can at green trees, bushes, or plants.
9) Do simple eye strengthening exercises as taught by yoga and other systems of healing.
10) Get a qualified eye doctor to check your vision and find out whether you need "computer glasses."

via 1888freeonlinegames

1. Regular checkups.
2. SPF for the eyes. 
3. Eye protection. 
4. Contact care.
5. Eye candy. 
6. Eye lube. 
7. Quit smoking.
8. Eye strain.
9. Talk to your family.
10. Stay healthy.

via msn

1. Look at distant objects either in your office or outside.

2. Keep two used tea bags in the refrigerator before you leave for work.

3. While you keep your eyes closed, roll your eyeballs both clockwise and anticlockwise and take a deep breath.

via labnol

1. Staring at the small screen - your monitor should be 5 to 9 inches below eye level.
2. In flight - Direct air vents away from you, and use artificial tears once every hour
3. In the sun - Make sure both sunglasses and contact lenses are UV-protective.
4. In the dark - Get a thorough eye exam to make sure you're seeing clearly.
5. Working up a sweat - Choose protective lenses designed for your specific sport.

via msn