Display
Arrange the display so that the top of the screen is slightly below eye level when you’re sitting at the keyboard. The best distance from your eyes to the screen is up to you, although most people seem to prefer 18 to 28 inches (45 to 70 cm).
Position the display to minimize glare and reflections on the screen from overhead lights and nearby windows. If possible, use a tiltable display stand. The stand lets you set the display at the best angle for viewing, helping to reduce or eliminate glare from lighting sources you can’t move.
Shoulders | Top of the screen at or | |
relaxed |
| slightly below eye level |
|
| (You may need to adjust |
Forearms and |
| the height of your display |
hands in a |
| by raising or lowering |
straight line |
| your work surface.) |
Forearms level 
or tilted slightly 
Lower back supported
Thighs tilted slightly
Screen positioned to
avoid reflected glare
Clearance under work surface
Feet flat on the floor or on a footrest
More information about ergonomics is available on the web:
www.apple.com/about/ergonomics
Chapter 5 Last, but Not Least | 71 |