Questions About Vision - Lenovo IdeaPad Y510 7758 User Manual

Chapter 5. Safety, Use, and Care Information
General Posture: Below are some general recommendations for assuming a healthy
working posture. It is best to periodically make minor modifications in your working
posture to deter the onset of discomfort caused by long periods of working in the same
position. Frequent, short breaks from your work will also help to prevent any minor
discomfort associated with your working posture.
Display: Position the display to maintain a comfortable viewing distance of 510-760 mm
(20-30 inches). Avoid glare or reflections on the display from overhead lighting or
outside sources of light. Keep the display screen clean and set the brightness to levels
that enable you to see the screen clearly. Press Fn + up/down arrow to adjust display
brightness.
Head Position: Keep your head and neck in a comfortable and neutral (vertical, or
upright) position.
Chair: Use a chair that gives you good back support and seat height adjustment. Use
chair adjustments to best suit your desired posture.
Arm and Hand Position: If available, utilize chair arm rests or an area on your working
surface to provide weight support for your arms. Keep your forearms, wrists, and hands
in a relaxed and neutral (horizontal) position. Type with a soft touch without pounding
the keys.
Leg Position: Keep your thighs parallel to the floor and your feet flat on the floor or on a
footrest.
What If You are Traveling?
It may not be possible to observe the best ergonomic practices when you are using your
computer while on the move or in a casual setting. Regardless of the setting, try to
observe as many of the tips as possible. Sitting properly and using adequate lighting, for
example, will help you maintain desirable levels of comfort and performance.

Questions about Vision?

Your computer's visual display screen is designed to meet the highest standards and to
provide you with clear, crisp images and large, bright displays that are easy to see, yet
easy on the eyes. Of course, any concentrated and sustained visual activity can be tiring.
If you have questions on eye fatigue or visual discomfort, consult a vision care specialist
for advice.
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