In our time Internet - is an important part of everyone's life. We spend a lot of hours researching information, playing games, reading books and doing other things. Internet is a very useful thing, isn't it? Yes, but only for a one side. Internet made our life more simple and gave us billions sites with different information. We can talk with our friends, who can be so far from us with helping of Internet. We can't imagine our world without it. But wait. What do you know about other side of Internet? When we stare to the monitor for long hours it isn't good for our eyes. It can give us eye strain and pain. It can also lead to loss of vision. Be careful with Internet and enjoy the opportunities that it gives!
