MRCP UK EXAMINATIONS

NEUROLOGY

OCULAR PALSIES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Where does the aqueous humor drain?
A
ciliary processes
B
Duct de Schlemm
C
tear ducts
D
None
Explanation: 

Detailed explanation-1: -The conventional pathway consists of aqueous humor passing through the trabecular meshwork, across the inner wall of Schlemm’s canal, into its lumen, and into draining collector channels, aqueous veins and episcleral veins [24, 25].

Detailed explanation-2: -Schlemm’s canal collects aqueous humor from the anterior chamber. It delivers it into the episcleral blood vessels via aqueous veins.

Detailed explanation-3: -The aqueous humor is a transparent liquid produced by the ciliary body and which passes through the pupil, thus filling the anterior chamber. It ultimately passes through a fine meshwork at the cornea–sclera–iris junction called the trabecular meshwork into Schlemm canal, and then drains into the venous system.

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