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Contrast Don`t go for high contrast on your screen as well as in your surroundings. For instance, if your computer is against a dark background, your eyes will have to try very hard to focus on each as you move them. The same is true if you work with light letters on a dark background.

Glare Is some light source shining directly on to your monitor? See if you can cut that out and go for task lighting instead. Or would moving the position of the computer make a difference?

Colour Everyone has his or her own colour preferences. Find out what colours you find soothing when you work on the computer. And remember to use low contrast.

Lighting How much is enough? This really depends on a lot things like your age, the quality of print, etc. There should be plenty of light for easy reading, but not so much as to cause strain.

Workstation Your eyes get strained by close viewing. If you work heavily with printed or reference material by the side of the computer, make sure that they are very close to the screen and have the same lighting as the monitor does. This way your eyes don`t have to quickly adjust to different states of lighting. Keep the objects that you look at frequently at roughly the same distance as your monitor so that your eyes don`t have to shift focus very often.

Monitor The general rule is that the centre of the screen should be 4-8 inches below your eyes. This makes sure that more of your eye surface is covered so that they remain moist. Also keep a distance of 55-75 cms between you and the screen.