Here are a few Tips That Might Help
Choose the right monitor, one that has an adjustable angle with a flat screen. Pick one that has high dot pitch, that can support high refresh rates, and has a high pixel count (To change refresh rate, right-click on the desktop and go to ‘Properties I Settings I Advanced I Monitor I Monitor setting’. 
Set the refresh rate to at least 72 and above. This will depend on your monitor, so look up the manual for the maximum refresh rate for each resolution.)
Blink frequently. Once you make a conscious effort to do this, it will soon become a habit. If you are unfortunate enough to already be suffering from dry eyes, then use simple eye-drops such as Itone.
Look away from the computer screen regularly and also try to look at distant objects every so often.
Clean the screen frequently, using a damp cloth.
Reduce the glare on your screen coming from open windows, bright lights, etc.
