Avoid tired eyes when using computer

Some of us, usually work with a computer, or just play a game and also browsing. And thats make your eyes tired and you got headache.
So, this some tips for you :
Keep your distance from monitor.
To close to monitor is dangerous for our eyes. Distance between 50-100 cm is advice for your eyes.
Throw your CRT and get LCD
CRT Monitor is worst, get LCD for your eyes.
Setting your monitor
Set your brightness and contrast for your eyes.
Use anti-radiation eye-glasses
The anti-radiation sphere in this glasses is very useful for our eyes. Because this sphere can decrease radiation from excessive light automatic.
Get rest your eyes for a while, continously.
It's the easy way for avoid tired eyes. Try to relaxing your eyes for 5 minutes every one hour you use computer.