If our eyes get oxygen directly from the air, how does it get it when we sleep a!


Question:

If our eyes get oxygen directly from the air, how does it get it when we sleep and our eyes are closed?

I started wearing contact lenses and realized I can't sleep with them else my eyes are bloodshot, because not enough oxgyen reaches them.

I can only think of one answer: when we close our eyes blood vessels in our eyelids supply the oxygen needed.


Answers:

Your eyes are never fully closed when sleeping. Plus they get it from the oxygen in your veins.


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