WHAT’S THE GUNK IN THE COR­NER OF MY EYES?

Girls' World - - Your Science Scoop - — Har­low, 9, NC

You might’ve heard some peo­ple call that gunk “eye boogers,” but it ac­tu­ally has a tech­ni­cal name: rheum. Rheum is made up of eye mu­cus, skin cells, oil and other de­bris. Dur­ing the day, you blink away all of the de­bris be­fore it can get stuck in the cor­ner of your eyes. But be­cause you don’t blink when you’re sleep­ing, rheum is able to build up. The gunk can be sticky or crusty de­pend­ing on how long it’s been sit­ting in your eyes. Wak­ing up to rheum is to­tally nor­mal; how­ever, get­ting a lot of eye gunk when you’re awake could be a sign of an eye in­fec­tion.

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