Sleep crust, also called eye gunk or rheum, is a mix of mucus, tears, and skin cells that builds up overnight when you stop blinking. It is common, especially during allergy seasons. Extra crust can ...

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Daniel Liberto is a journalist with over 10 years of experience working with publications such as the Financial Times, The Independent, and Investors Chronicle. David Kindness is a Certified Public ...

Sticky eyes happen when discharge builds up in the corners of your eyes, often during sleep. Occasional crusting is common and usually harmless. Watch the discharge color and thickness, especially if ...