Elo TouchSystems 2270L User Manual page 17

Flicker Free
TÜV Rheinland has tested this product to ascertain whether the display produces visibly and invisible flicker for the human eye and
therefore strains the eye of the user.
The keyword "Flicker Free" confirms that the device has no visible and invisible flicker defined in this standard within the range of 0 - 3000
Hz under various brightness settings.
Break time, eye excises, Look at distance objects, Neck Exercises
To reduce your risk for computer vision syndrome and neck, back and shoulder pain, take frequent screen breaks during your work day
(at least one 10-minute break every hour). During these breaks, stand up, move about and stretch your arms, legs, back, neck and
shoulders to reduce tension and muscle fatigue. Another cause of computer eye strain is focusing fatigue. To reduce your risk of tiring
your eyes by constantly focusing on your screen, look away from your computer at least every 20 minutes and gaze at a distant object (at
least 20 feet away) for at least 20 seconds. Some eye doctors call this the "20-20-20 rule." Looking far away relaxes the focusing muscle
inside the eye to reduce fatigue. Another exercise is to look far away at an object for 10-15 seconds, then gaze at something up close for
10-15 seconds. Then look back at the distant object. Do this 10 times. This exercise reduces the risk of your eyes' focusing ability to "lock
up" (a condition called accommodative spasm) after prolonged computer work
Exercises for the eyes
Keep the body and the head upright. Turn the eyes up to look at the ceiling. then turn down to look at the floor.
1.
Turn the eyes left and right slowly to look at objects on the two sides.
2.
Turn the eyes to look at objects at the right upper direction and then the night lower direction. Repeat for the left upper and left
3.
lower directions.
Exercises for the neck
Keep the arms relaxed at your side.
Bend your head forward slightly to stretch the neck
Hold for 5 seconds.
Keep the arms relaxed at your side.
Turn the head to one side and hold for 5 seconds.
Repeat for the other side.
Keep the arms relaxed at your side.
Swing the head to the left and hold for 5 seconds.
Repeat for the other side.
User Manual<70 Series Monitor>
UM600633 Rev B
17