In the hot summer, the sun is dazzling, and the high-intensity ultraviolet rays test the delicate skin of babies. Especially their eyes are more afraid of the sun than their skin. As a result, many parents also put sunglasses on their children's little noses. Wang Zheng, deputy chief physician of the Department of Ophthalmology, Beijing Hospital of the Ministry of Health, told reporters that children's cornea and lens are clearer than adults, so they are more susceptible to ultraviolet rays. If you do not pay attention to sun protection, they may damage the corneal epithelium of children and cause burns to the macula of the retina. It lays down hidden dangers for eye diseases such as cataracts in the future. So in summer, in addition to sunscreen for children's skin, the eyes should also be protected. Tell your children not to look directly at the sun; try to avoid outdoor activities from 12 noon to 2 pm when you are in ultraviolet rays; wear a wide-brimmed hat, umbrella, or appropriate sunglasses when you go out, but not all children are suitable for wearing sunglasses. Gao Jiansheng, a professor of ophthalmology at the China Academy of Chinese Medical Sciences, said that wearing sunglasses for an hour or two when going out can protect children, but not for too long. 'Because the child's visual function is immature, it needs more bright light and clear object stimulation. Wearing it for a long time will affect the normal development of vision. In severe cases, it may lead to amblyopia. So try not to wear sunglasses for your child before the age of 6.' Moreover, the current sunglasses market is mixed and the quality is uneven. Many children's sunglasses are made of plexiglass or ordinary glass and do not have the function of UV protection. Chu Renyuan, a professor at the Eye, Ear, Nose and Throat Hospital of Fudan University, pointed out that if you choose such inferior sunglasses, you are more likely to damage your eyes. Because people’s pupils dilate after wearing sunglasses, ultraviolet rays are more likely to damage your eyes than when you do not wear sunglasses. Chu Renyuan reminded that when buying sunglasses for children, go to a regular eyeglass shop and choose the ones with anti-UV logos. As for the color of the lens, it is better to choose gray, smoky or brown. They cause less color distortion and better color perception. Avoid choosing candy colors. The size of the lens and the frame should be suitable for the child's face, not too heavy or too wide, otherwise it is easy to slide
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