On this bright sunny day we are reminded of a serious condition - TopicsExpress

On this bright sunny day we are reminded of a serious condition that can occur when enjoying the outdoors in snowy conditions with bright sunshine. Snow Blindness: Symptoms of snow blindness may include increased tearing or watering of the eyes, bloodshot eyes, uncontrollable eyelid twitching, and eye pain. The most common symptom is a feeling of sand or grit in the eyes. The eyes may swell shut in extreme cases. The pain caused by snow blindness is a result of the cornea’s inflammation, which occurs when the cornea is exposed to the sun’s UV rays, either by a lack of eye protection or eye protection that is inadequate for the conditions. Snow blindness may cause a temporary loss of vision, or even permanent vision loss in extreme cases of repeated exposure. Snow blindness will likely affect those traveling in snowy conditions who are not wearing any eye protection, but it can also affect those who are wearing inadequate eye protection, such as sunglasses that allow light to enter the sides or sunglasses that don’t block out enough of the sun’s rays. Prevention: Sunglasses: Choose sunglasses that effectively block out the sun’s UV rays from all possible reflective surfaces. Glacier Goggles: If you have trouble finding sunglasses that offer full coverage, look specifically for glacier goggles, or glacier sunglasses, which fit like sunglasses but often have extra features to block out light, such as plastic or other material attachments on the sides and lower portions of the glasses. Snow Goggles: Snow goggles, otherwise known as ski goggles, will work well for those traveling in snowy conditions, especially when it becomes windy or blizzard-like. Snow goggles are tight-fitting and offer full eye coverage, but you still need to choose a dark or mirrored lens, especially if you anticipate traveling in sunny conditions for an extended time over a glacier or snowfield. Snow Blindness: Treatment If any of the symptoms of snow blindness are present, remove yourself immediately from the injury source--the sunlight and its reflective surface. Go inside, if possible, and rest in a dark room, or rest in your tent with a dark cloth covering your eyes. If you wear contact lenses, remove them, and do not rub your eyes. Seek medical attention if pain persists.

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