“Sleep” is a type of “rheum”, which is the name for discharge from your nose, mouth or eyes during sleep. More specifically, eye rheum is known as “gound”. Gound is made up of a mixture of dust, blood cells, skin cells, etc. mixed with mucus secreted by the conjunctiva, as well as an oily substance from the meibomian glands.
Title: What is the "Sleep" in Your Eyes
Published on May 16, 2016
Uploaded by: Today I Found Out
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