Ergonomic use of work tools and equipment may largely prevent the musculoskeletal disorders.
When working with computers, your sitting position should be as shown.
The top of the monitor should be slightly below eye level.
The screen should be about arm’s length away, slightly below eye level (the font size may be enlarged to adjust the distance).
Rest your eyes at least every 30 minutes, do not forget to blink and your eyeglasses should be anti-reflective.
If you use display screen equipment for eight hours a day, to give your eyes a break in every 20 minutes and look at something 20 feet away for 20 seconds would be an essential exercise for eye health (The 20/20/20 Rule).
An equal level of room and monitor brightness during usage of display screen equipment eliminates the risk of contracting eye diseases.
Sit straight, extend your arms on your eye level. If your fingertips touch the top of your monitor, then your monitor is placed correctly.
Try to keep your wrist straight when using the mouse. Otherwise, you may contract carpal tunnel syndrome.