- Who's at risk?
- Standards
- The Costs of Bad Ergonomics
- The Development of CTDs
- Carpal Tunnel Syndrome
- Risk Factors For CTDs
- Accomodation
- Vergence
- Shorter Viewing Distance
- Dry Eyes
- Vision and Posture Interact
- Required and Voluntary Movements
- Monitor Tilts
- Computer User Preference
- Eyeglasses
Why Nova Solves Problems
Why does Nova put the monitor below the horizontal line of sight? Because this position conforms to the way our eyes work.
Our "normal line of sight" varies with our viewing distance. When we look at objects far away, our eyes are most comfortable viewing them straight ahead, i.e. horizontally. On the other hand, when we view close objects at lower angles we strain our eyes less.
Most objects high in our line of sight are at far distances, such as the horizon. Objects that are lower in our line of sight are almost always closer. This is most noticeable outdoors.
Vision complaints rank high on the list of computer user problems. One study found that more than 50 percent of computer users suffered eye strain after an eight hour shift (Gunnarsson and Soderberg 1979).