What causes the squeaky sound we sometimes hear when we rub our eyes?

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What causes the squeaky sound we sometimes hear when we rub our eyes?

In: Biology
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The squeaking noise is escaping air that was trapped in the lacrimal system—the structure housing the tear ducts. When you rub your eyes, you manipulate and put pressure on the tear duct, which causes a “squishing sound of air and tears.”

(Sorry stole from Google)