- COMPUTER MONITOR:
Eye to Screen Distance:
- The monitor should be at least 25” from the eye; preferably
35” to 40” (often restricted by desk top depth). If you
cannot read the characters on the screen, make them larger by increasing
from 100% to 150% on your toolbar.
- Vertical Monitor Location:
- Your level gaze should focus upon the top 1/3 of the computer screen.
- Monitor Tilt:
- Tilt the monitor so the top is slightly farther away from the eyes
than the bottom of the monitor.
- To best avoid glare, lighting should be suspended from the ceiling
and indirect. Control outside lights with blinds and shades. Keep environmental
light levels low and, if necessary, supplement with a desk lamp.
- Monitor Placement:
- You should be looking straight ahead at your monitor, not rotating
your neck to the left or the right. Substituting a plasma screen may
be the only option.
- The keyboard should be placed so the shoulders are relaxed, the elbows
have an open angle (90 degrees), and the wrists are straight (not bent
- Your elbows should be free to move so there is less movement at the
- Your feet should be flat on the floor after you’ve followed
the guidelines below. If not, place a board or phonebook under your
desk to rest your feet on.
- Seat Pan Tilt:
- If the seat tilts too far forward, your legs will have to work to
support you and keep you from sliding forward. If tilted too far backward,
your knees will be higher than your hips, rotating the pelvis back and
rounding out the spine.
- Seat Pan Depth:
- If the seat depth is too short, the thighs will not be supported.
If it is too long, it will be uncomfortable behind your knees.
- Chair Back:
- The back should be tall enough to reach the upper back while also
placing sufficient curve in the correct position to support your low
- REMOVE THEM. If used, they tend to increase slouching and soon your
shoulders are up to your ears.
- The desk top should be deep enough for the monitor to be at least
25” from the eye and still have room for the keyboard in front
of the monitor if there is no pull-out.
- Often drawers beneath desks can prevent you from raising your chair
to a proper height. Obstructions under the desk may prevent you from
moving the chair close enough to reach work tasks easily. Be sure to
remove anything that may cause problems.
- Object Placement:
- Not only are monitor and keyboard placement important, but all other
frequently used objects (pens, pencils, stapler, tape dispenser, paper
clips, notepads, etc) should be placed in a “rainbow pattern”
on the desk surface, thereby decreasing reaching and twisting.