冬季玩雪当心患上“雪盲症”随着冬季来临，滑雪、堆雪人、打雪仗等冰雪活动成为人们喜爱的户外娱乐方式。然而，在享受冰雪乐趣的同时，也需警惕一种容易被忽视的眼部疾病——“雪盲症”。雪盲症，医学上称为“光性角膜炎”或“紫外线角膜炎”，是由于眼睛长时间暴露在强烈紫外线（尤其是雪地反射的紫外线）下，导致角膜和结膜受损而引发的急性炎症。雪地可反射高达80%的紫外线，加上高海拔地区紫外线更强，因此在雪山、冰原等环境中风险更高。雪盲症的症状通常在暴露后6至12小时内出现，包括眼睛刺痛、灼热感、流泪、畏光、视力模糊，严重时甚至暂时失明。虽然症状多为暂时性，但若反复发作，可能对视力造成长期影响。预防雪盲症的关键在于做好眼部防护。建议在雪地活动时佩戴具有100%防紫外线功能的太阳镜或滑雪护目镜，尽量选择包裹性强、能阻挡侧面光线的款式。儿童和成人同样需要防护，切勿因天气阴冷而忽视紫外线伤害。一旦出现疑似雪盲症状，应立即离开强光环境，闭眼休息，并避免揉搓眼睛。如症状持续或加重，应及时就医。安全玩雪，从保护双眼开始！
Beware of Snow Blindness When Enjoying Winter Snow ActivitiesAs winter arrives, outdoor activities like skiing, building snowmen, and snowball fights become popular ways to enjoy the season. However, while having fun in the snow, it’s important to be aware of a commonly overlooked eye condition—snow blindness.Medically known as photokeratitis or ultraviolet keratitis, snow blindness occurs when the eyes are overexposed to intense ultraviolet (UV) radiation—particularly UV rays reflected off snow surfaces—causing acute inflammation of the cornea and conjunctiva. Snow can reflect up to 80% of UV light, and at higher altitudes, UV exposure is even stronger, significantly increasing the risk in snowy mountain or glacial environments.Symptoms typically appear 6 to 12 hours after exposure and may include eye pain, a burning sensation, excessive tearing, light sensitivity, blurred vision, and in severe cases, temporary vision loss. Although usually temporary, repeated episodes can lead to long-term eye damage.The key to prevention is proper eye protection. Always wear sunglasses or ski goggles that offer 100% UV protection when outdoors in snowy conditions. Choose wraparound styles that block peripheral light for maximum coverage. Both children and adults need this protection—even on cloudy or cold days, UV radiation remains a threat.If symptoms of snow blindness occur, immediately move to a dark environment, keep your eyes closed, and avoid rubbing them. Seek medical attention if symptoms persist or worsen. Safe snow play starts with protecting your eyes!
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