cause many people got sick. Not conducive to people's health. “If you spend all day staring at a computer screen, you may be at risk for computer vision syndrome (CVS), also called occupational asthenopia.”(Blend, 2013, n.p) CVS encompasses all eye or vision-related problems suffered by people who spend a lot of time on computers. CVS will make your eyes dry, tearing, red, burning eyes, eye irritation, or headaches, and even pain in the neck or back. I think this is a nightmare for your eyes. “Research…
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