The influence of TV set on the eyesight.
The television is a great creation of humanity. It is much spoken about, people argue about its negative or positive influence on a person. But still everybody agrees on its negative impact on the eyesight, because the constant watching on the screen can't do you any good. Television is the additional duty for the eye. The colour modern TV sets are not so harmful as the black-and-white were.
The incorrect sitting in front of the TV set may lead to cross-eye, short sight or long-sight. That is why it is necessary to choose the distance in such a way that you can see everything properly on the screen not too close and not too far from it. Besides, the position of the head must be just in front of the screen not being bent. This position will keep your eyesight and neck fit.
The influence of television on the eyesight depends on what you watch too. Doctors say that in the tense moments of action, most people stop blinking and breathing for a moment. To keep fit, viewers should pay attention to their breathing and blinking. If you don't blink, the eye tension becomes higher that may lead to disorders of the eye.
If you constantly watch at the same point in the screen or one of the parts of it, your eye receives more duty. The eyeball should move all over the screen and take the whole picture instead of concentrating on its parts.
The other problem is the long-lasting scenes that have a particularly harmful influence on the eye. It can't percept the same scene for a long time, especially the boring one that is why it is necessary to look for a minute at another object, to close eyes for a minute and to relax a bit.
Sometimes television can not only harm the eyesight but also help it. For example, those who restore their eyesight, practice it on TV programmes, but of course not for a long time.
The light in the room is not of less importance. In any case you shouldn't turn off the light while watching the television. But the majority of people do that. The problem is that when you turn off the light the eye needs to take the contrast appeared between the light of the TV set and the darkness in the room. The light mustn't be too dark or to bright and should correspond the light of the TV set.
Well, everything is good when it is not too much of it. Spending 2 hours in front of the TV set won't harm you. You should just pay attention to the time spent and the pose you take while watching it.