when my eyes start feeling like they're drying up too much, i have to take off my contacts and my eyes hurt badly with a feeling like their are many grains of sand in them and the grainy feeling lasts for several several minutes most of the time. eye drops don't solve the problem...after about 30 minutes to an hour, i can usually put my contacts back in, but sometimes, the problem relapses quickly. anyone know what this can be?
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