aqueous humor
US /ˈeɪkwiəs ˈhjuːmər/
UK /ˈeɪkwiəs ˈhjuːmər/

1.
the clear fluid filling the space in the front of the eyeball between the lens and the cornea
:
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Glaucoma is often associated with increased pressure from the aqueous humor.
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The aqueous humor provides nutrients to the cornea and lens.