With the increase in the heat of ice and snow sports, sports safety knowledge should also be mastered. Recently, an 8-year-old boy in Hangzhou caused eye pain and tears because of continuous skiing for 7 hours. When the doctor checked, he suffered from "electro-optical ophthalmia", which is commonly known as snow blindness.
Judging from the news reported by the relevant media, the boy continued to ski for 7 hours, after which, the eyes appeared painful and continued to shed tears, and the local hospital doctor judged that a long period of snow exercise caused the eyes to be burned by ultraviolet rays, inducing "electro-optical ophthalmia", that is, snow blindness.
Ren Meiqing, attending physician of the Department of Ophthalmology of the Affiliated University of Southeast University, said: "Because the refractive index of the ice surface and the snow surface is particularly consistent, the reflection of ultraviolet rays is particularly strong, equivalent to the case of direct sunlight, so there will be snow blindness, most people are finished after 6 to 8 hours to find out, when found when the eyes are red and swollen, painful, tearful, can not open the eyes, especially foreign body feeling, photophobia, these symptoms will be more obvious."
Snow blindness is mainly related to the intensity and duration of ultraviolet radiation, everyone in skiing, skating, pay attention to wearing goggles, and control the length of exercise: "Athletes are wearing glasses when skiing, in fact, it is skiing goggles, that is a must." And the skiing time can not be particularly long, if you are not a professional athlete, you can not ski for 6 hours a day, 8 hours a day, you can rest for 10 to 15 minutes after half an hour of exercise. “
Doctors said that when acute snow blindness occurs, it will lead to vision loss, but this is a self-healing disease, which can generally be recovered in 24 to 48 hours: "Once it occurs, if you can't get to the hospital on the spot, you will do ice." Some people wonder if they will have to do hot compresses? The hot compresses will become more and more serious, and after doing the ice compresses, go to the hospital for treatment. “
In addition, ice and snow sports may also cause falls, fractures and other conditions, doctors recommend that beginners wear protective gear, warm up in advance, once the body is unwell, immediately stop exercising, timely medical treatment.
(Reported by Wang Shu and Wei Shaohua, reporters of Jiangsu Radio and Television Corporation, Rong Media News Center)
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