Acer AcerSystem Manuale d'uso - Pagina 9

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Acer AcerSystem Manuale d'uso
viii
install the external display, keyboard and mouse properly and within
•
comfortable reach
if you view your monitor more than your documents, place the display at
•
the center of your desk to minimize neck strain
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:
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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
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changing the display's viewing angle
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using a glare-reduction filter
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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.
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Exercise regularly and maintain a healthy body.
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