What causes stoners eyes to become red?!


Question: What causes stoners eyes to become red?
My stoner friend always gets blood shot eyes when he's been smoking pot. He uses eye drops to make them clear again, but what is it that makes the eyes appear red?

Answers:

Cannabis causes the blood vessels in the eye to enlarge, making them more visible and red. It's the reason the drug works to help reduce intraocular pressure in glaucoma patients.

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