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当你在阳光照耀着的皑皑雪原上作业时,一定要注意保护你的眼睛。适量的紫外线是人体健康所必须的,但过多就会损害人的健康。雪后天晴,人的双眼若长时间受到太阳光中紫外线的直接照射及雪地的强烈反射作用,不注意防护就会患雪盲(即日光性眼炎)。患雪盲后开始感觉眼内好象进了沙粒一样,随后很快觉得疼痛,视物不清,畏光,流泪,眼球结膜充血。一般经1～3天即可恢复,但由于症状明显,给患者带来一定痛苦,同时也影响生产。雪盲是完全可以预防的,预防
When you work on a snowy field where the sun is shining, care must be taken to protect your eyes. The right amount of UV is necessary for human health, but too much will harm human health. Snow after the sunny, if the human eye for a long time by the direct sunlight in the sun and the strong reflection of the snow, do not pay attention to protection will suffer from snow blind (ie, solar ophthalmia). Suffering from snow blindness began to feel like eyes into the sand, then quickly felt pain, blurred vision, photophobia, tearing, eye conjunctival hyperemia. Generally 1 to 3 days to recover, but the obvious symptoms, to bring some pain patients, but also affect the production. Blindness is completely preventable and preventable