Acer aspire xc100 Benutzerhandbuch

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Taking care of your vision
Long viewing hours, wearing incorrect glasses or contact lenses, glare, excessive 
room lighting, poorly focused screens, very small typefaces and low-contrast 
displays could stress your eyes. The following sections provide suggestions on how 
to reduce eyestrain.
Eyes
Rest your eyes frequently.
Give your eyes regular breaks by looking away from the monitor and focusing 
on a distant point.
Blink frequently to keep your eyes from drying out.
Display
Keep your display clean.
Keep your head at a higher level than the top edge of the display so your eyes 
point downward when looking at the middle of the display. 
Adjust the display brightness and/or contrast to a comfortable level for 
enhanced text readability and graphics clarity.
Eliminate glare and reflections by:
Placing your display in such a way that the side faces the window or any 
light source.
Minimizing room light by using drapes, shades or blinds.
Using a task light.
Changing the display's viewing angle.
Using a glare-reduction filter.
Using a display visor, such as a piece of cardboard extended from the 
display's top front edge.
Avoid adjusting your display to an awkward viewing angle.
Avoid looking at bright light sources, such as open windows, for extended 
periods of time.
Developing good work habits
Develop the following work habits to make your computer use more relaxing and 
productive:
Take short breaks regularly and often.
Perform some stretching exercises.
Breathe fresh air as often as possible.
Exercise regularly and maintain a healthy body.
Warning! We do not recommend using the computer on a couch 
or bed. If this is unavoidable, work for only short periods, take 
breaks regularly, and do some stretching exercises.