| Work without computers in the present times seems quite impossible. But while computers have revolutionised the way in which we do things, there are many long-term effects associated with extensive and prolonged usage.
It is not uncommon for individuals to experience eye problems and discomfort such as headache, backache and fatigue from extensive computer use. | 
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| Maintaining good posture while working on a computer
Many of the ill-effects of computer use can be lessened or avoided altogether by utilising correct typing technique and posture, ensuring correct set up of equipment and good work habits. - Place computer monitor and keyboard directly in front of you so as to avoid twisting your neck.
- Monitor should be 20-24 inches away from eyes and the height of the monitor should be 5-15 inches below horizontal line of sight.
- The mouse and keyboard should be at the same height.
- Shoulders should be relaxed with elbows forming a right angle and wrists extending straight and unbent from the arms. Hold wrists in neutral position, not upward or downward.
- Use an adjustable chair that provides firm, comfortable support.
- Adjust chair height so that thighs are horizontal, and feet are flat on the floor (use a footrest if necessary). Chair should be with a backrest for lumbar support.
- Do not slouch.
- Ensure that frequently used materials are within easy reach.
- Get up and move around as often as possible - at least once every 20 to 30 minutes.
- Block excessive sunlight with drapes or blinds and use indirect room lighting.
- Give your eyes a rest every 15 to 20 minutes by focusing on a distant object for 10 to 15 seconds and blink often to prevent dry eyes.
- Use holder to hold paper.
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