HP Compaq Presario,Presario 917 Supplementary Manual page 21

Adjusting monitor height for bifocal and trifocal users
If you wear bifocals or trifocals, it is particularly important to adjust the height of your
monitor correctly. Avoid tilting your head back to view the screen through the lower
portion of your glasses; this could lead to muscle fatigue in your neck and back. Instead,
try lowering your monitor. You may want to consider using monofocal glasses that are
specially made for computer use.
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HINT: Notebook Viewing
Whenever using a notebook computer for long periods, you may find it more comfortable to connect a full-
size monitor. A separate monitor gives you a wider range of viewing distance and height options.
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HINT: Adjusting Brightness and Contrast
Reduce the potential for eye discomfort by using brightness and contrast controls on your monitor to
improve the quality of text and graphics.
Eliminating glare and reflections on your monitor
Take the time to eliminate glare and reflections. To control daylight, use blinds, shades,
or drapes, or try other glare-reducing measures. Use indirect or reduced lighting to avoid
bright spots on your display screen.
If glare is a problem, consider these actions:
N Move your monitor to a place where glare and bright reflections are eliminated.
N Turn off or reduce ceiling lights and use task lighting (one or more adjustable lamps)
N If you cannot control the ceiling lights, try positioning your monitor between rows of
N Attach a glare-reduction filter to your monitor.
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to illuminate your work.
lights instead of directly beneath a row of lights.
WRONG!
If you wear bifocals or trifocals, don't position your monitor
so high that you have to tilt your head back to view the
screen.
Safety and Comfort