In life, besides sunlight, such as fluorescent lamps, fluorescent lamps and radium emit ultraviolet radiation. In addition to these direct sources of ultraviolet light, snow, seawater surfaces, metal, concrete and bleached textiles also reflect ultraviolet radiation. Therefore, there is UV radiation in our daily life, whether it is sunny or cloudy, outdoors or indoors. Most people know that UV rays can damage the skin and cause cancer, but did you know that it can damage your eyes? UV rays most often damage the cornea, lens, easy to cause solar keratitis and corneal endothelial damage, skin aging around the eyes, the elderly will cause cataracts, macular degeneration, seriously affecting vision. Ultraviolet light also has a characteristic that the damage caused to the eye has a cumulative nature. Therefore, the protection of ultraviolet rays is very important, especially for children, children’s lens does not have the ability to protect against ultraviolet rays, so it is recommended that children try to minimize the strong ultraviolet rays in the time to go out, go out to pay attention to ultraviolet protection, wear sunglasses and wear a hat.