What causes eye boogers?
Eyes have water and oil to keep them lubricated and sometimes when a person is a little dehydrated this causes the solution to crust.
Eye boogers refer to a buildup of mucus in the eyes. During the day, each time a person blinks, the eyes flush away the boogers they have produced. Since the eyes produce this mucus in such small quantities, most people never notice it. At night, when a person does not blink, the mucus can build up.
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