Watching TV now seems to play an dispensable role in people\'s daily life. TV brings great happiness to us, as well as reading glasses great harm to our bodies, especially the eyes which are busy during watching TV. The following is a list of four ways of most damage to eyes.

• a long time watching TV?

Some people are able to focus their pupils on the screen for hours without a stop. As a result, people begin to flag, feel dizzy and eyestrain. Medical researchers call it as televitis. Watching TV too long is adverse to our eyes, According to an experiment, a continuous 4-5 hours of watching TV can decrease vision by 30% temporarily, and the eyes need some time to be recovered. If the time lasts, there is no time for your eyewear eyesight to regain, and you will finally lose your eyes.

• Watching TV with lights off.

Some people turn off all the lights while watching TV or using the computer in normal times. Then only the screen shines in the dark. Cular expert points out that, it is wrong to do this. In this way, eyes are particularly vulnerable to be tired. After a long time, it will influence the eyesight and even injure the eyes.

• Watching TV with prescription eyeglasses frequently changing the channels.

A study newly shows that it is worse for your eyes by changing channel frequently than watching TV for a long time. The reason is that during the second when you turn to another channel, there will appear a sudden change from total dark to brightness, which is more or less a shock to eyes. Researchers indicated it is better to close eyes before changing channels, or blink after changing, according to researchers.

• Lastly, sometimes we may watch TV on vehicles.

Nowadays, TV sets are available on buses so that the passengers are able to pass the time by watching TV. Generally speaking, it\'s the reflect of premium sevice. However, Watching television in car a lot of people will be eyes swollen, dry, or even dizziness, nausea, vomiting and other adverse symptoms.

For the sake of vision health, please get rid of these bad habits.