Adjust the monitor height so that the top of the screen is at or slightly below eye level. Your eyes should look slightly downward when viewing the middle of the screen.
Position the monitor no closer than 20 inches (508 mm) from your eyes. A good rule of thumb is an arm’s length distance. The larger your screen, the more distance you will want.
Adjust the screen position to eliminate glare from windows and ceiling lights.
If lighting conditions permit, tilt the monitor back 10° to 20°: this maintains the same distance between your eyes and the screen as you scan it from top to bottom.
Exception: If using bifocals, lower the monitor below eye level and turn screen upward, tilting it back 30° to 45°.
The center-line of the keyboard should be level with the height of your elbow.
Tilt the keyboard back 10° so that your wrists remain flat.