Many children today are wearing myopic glasses, which is something that makes many parents helpless. And many children also like to watch TV, which hurts their eyes even more. What can parents do to prevent vision problems caused by their babies watching TV? Are there any tips? 1, the location and distance of the TV set to be appropriate The placement of the TV set should be placed as far as possible in a soft corner, the height should also be appropriate, not too high or too low, the center of the TV screen is best and the eyes at the same level or slightly lower. When watching TV, the eye muscles are in a state of tension, the distance between the eye and the screen should be appropriate, many children in watching TV like to stand in front of the TV to see, so the distance is too close, not only looks blurred, more likely to cause vision fatigue. Generally speaking, the distance between the TV and the person should be 4 to 6 times the diagonal of the screen is more appropriate. 2, the contrast of the TV and the room brightness to be appropriate TV contrast is too large, the light brightness is not uniform, more focused vision, easy to cause eye fatigue. Contrast is too small, the image color is not distinct, and not easy to see clearly. Some people like to watch TV to turn off the lights in the house, so that the brightness of the screen and the surrounding dark environment to form a sharp contrast, long time watching, the eyes are very uncomfortable. On the contrary, if the lights in the room is very bright, then the image on the screen appears gray and dark, but also can not see clearly. Therefore, when watching TV, the light in the house is not too dark, not too bright, you can open a small soft light in the house, so that the eyes are not easily fatigued. 3, do not change the channel too often Watching the moment the TV changes, is the biggest eye stimulation, because most of the TV in the moment of changing the channel, there will be a black screen and suddenly become brighter, when the sudden change in light, will cause some eye stimulation, change the channel too often, more likely to cause eye fatigue. Before changing channels on TV, it is best to close your eyes first, or blink more after changing channels, because this can stimulate the secretion of eye tear glands or exercise the muscles around the eyes to avoid eye fatigue. 4, the time to watch TV should not be too long Whether it is the computer or television, be sure to control the time, especially for teenagers, the longest do not exceed 2 hours. During the viewing process, consciously blink more to increase the secretion of tears and improve the moistness of the cornea. Or in between commercial programs, stand up and look into the distance for a while to avoid excessive eye strain. 5, do not watch TV on the coach or bus Nowadays, many coaches and buses have TVs, which makes it easy for passengers to pass the boring time during the ride. As the car driving vibration and body space is limited, the distance and angle of watching TV in the car is not ideal, in the distance and angle of improper conditions to watch TV, easy to hurt the eyes. Therefore, in the coach, bus, it is best not to stare at the TV screen for a long time, you can look for a while, and then close your eyes to rest for a while, or look out of the car window, so that the eyes fully relaxed. 6, pay attention to a reasonable diet moderate to eat foods rich in vitamin A, E, such as tomatoes, carrots and chicken liver, pig liver, etc.. Usually you can eat more fresh vegetables and fruits because they contain more vitamin C, which may enhance certain anti-radiation effect and have a certain role in protecting your eyes. In Chinese medicine, angelica, white peony, etc. can replenish blood, chrysanthemum, wolfberry, cassia seeds have the effect of brightening the eyes, people who often use their eyes can make water to drink as tea. If you feel eye fatigue or dryness, you can also drop some artificial tears to increase the lubrication of the eyes; if the vision is lower than 5.0, diagnosed as true myopia, should promptly wear the right glasses to correct, corrective glasses can slow down the phenomenon of vision fatigue, but also to prevent the occurrence of other eye diseases such as occult exotropia, amblyopia. If you have been wearing glasses students should check their vision once in 3 to 6 months, if the degree is not suitable should be adjusted in time to ensure good vision. 7, do not rush to give children with glasses Parents should not rush to give children with glasses when they find children myopia, to distinguish whether the child belongs to true myopia or pseudomyopia. Children due to improper reading, writing or inadequate lighting and other factors, so that the ciliary muscle is often in a contracted state, the convex lens is not easy to relax, then, the distant parallel light into the eye, after the convex lens stronger flexion, the focus no longer falls on the retina, but in front of the retina, see things blurred, medical called pseudomyopia. In pseudomyopia, the anterior and posterior diameters of the eye are not lengthened and the structure of the eye is not changed, but only the physiological function is changed. With timely treatment and protection, the ciliary muscle can be relaxed and the vision can be restored to normal. If the pseudomyopia stage is not taken seriously and continues to develop, the anterior and posterior axes of the eye become longer, the structure of the eye changes and becomes true myopia, which must be corrected by wearing glasses.