Abstract: Nowadays, parents are very busy with work. Considering safety factors, children are rarely allowed to play outdoors alone. Therefore, children are mostly accompanied by TV. Over time, it is not difficult to understand the problems such as vision decline and myopia.
as we all know, myopia is directly related to eye hygiene in daily life. Many parents also limit their children’s time watching TV. Yan Shoujian, director of Ophthalmology of Shanghai Hushen facial features hospital, told the author that in fact, TV can be watched, but we should pay attention to posture and time.
watching TV for 4 hours can temporarily reduce vision by 30%. Therefore, director Yan reminded that we should pay special attention to protecting our eyesight when watching TV. General attention should be paid to the following points:
I. The contrast of TV and the brightness of the room:
TV has too large contrast, uneven light brightness and more concentrated vision, which is easy to cause eye fatigue. The contrast is too small, the image color is not clear, and it is not easy to see clearly. Some people like to turn off the lights in the house when watching TV, so that the brightness of the screen is in sharp contrast to the surrounding dark environment. It is very uncomfortable for their eyes to watch for a long time. On the contrary, if the light bulb in the room is very bright, the image on the screen appears gray and can not be seen clearly.
so when watching TV, the light in the room should not be too dark or too bright. You can turn on a soft light or red bulb in the room, so that your eyes are not easy to get tired.
II. Location and distance of TV:
the TV should be placed in the corner with soft light as far as possible, and the height should be appropriate, not too high or too low. The screen center of the TV should be at the same level or slightly lower than the eyes. When watching TV, the eye muscles are in a tense state. The distance between the eyes and the screen should be appropriate. If the distance is too close, it looks blurred, which is easy to cause eyesight fatigue. If the distance is too far, it is not easy to see. Generally speaking, the distance between TV and people should be 4 ~ 6 times of the diagonal of the screen. It can also be measured by a simple method. Straighten one hand forward, put the palm horizontally, and close one eye. If the palm just covers the TV screen, this distance is more appropriate. In addition, when watching TV, it is best to sit in front of the screen. If you sit on the side, the observation angle should not be less than 45 degrees.
III. control the time of watching TV:
the time of watching TV should not be too long, especially for teenagers. In the process of watching, close your eyes for a short rest or look away for a while while while taking advantage of the gap between changing programs or advertisements, so as not to affect your vision due to excessive eye fatigue. Warm tips of
: young children’s eye health should be started from an early age, such as developing good eye habits. Parents and friends need to give appropriate and correct guidance to their children.