Part Two – To protect their health, the light of environmental protection equipment is not enough, but also develop good habits for using computer.
3. Maintain the correct posture, back close to the seat back, his hands on the armrest naturally, not bent back to work, especially the young friends, be sure to note this.
Perpendicular to the natural arm, forearm and upper arm 90 degrees, wrist, forearm and on the same level as the level of the thigh and the seat, leg and thigh 90 degrees, feet touches the ground.
The distance between the monitor and the eye at least 50 cm above, and the screen position to be in the sight of the following 10 to 20 degrees. Syncline below the human eye is accustomed to see things, more to the point of view the human eye, the eye area is exposed to the air the greater the long face makes the eyes dry.
According to the physical structure of the eye, eye muscle when the eye is also need for greater upward force will accelerate fatigue. Also raised his head and looked up, it will also affect the neck. Computer monitor should be at least one meter above the back of the space, so we would not have focused on near the screen, to prevent myopia.
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