Glaucoma occurs due to increased eye pressure when fluid does not drain properly via the canal of Schlemm. The aqueous humor, when obstructed, leads to this condition. If untreated, it can cause damage to the optic nerve and vision loss. ;
Glaucoma is caused by increased eye pressure when the aqueous humor does not drain properly through the canal of Schlemm. If untreated, this condition can lead to optic nerve damage and vision loss. Therefore, the correct answer is C. canal of Schlemm.
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