Common Eye Disorders Practice Test

Aqueous humor primarily exits the anterior chamber via which drainage pathway?

Uveoscleral route Through retina Through the trabecular meshwork into Schlemm's canal (and then into episcleral veins) Through lacrimal drainage system

Correct Answer:

Through the trabecular meshwork into Schlemm's canal (and then into episcleral veins)

Explanation:

Aqueous humor leaves the anterior chamber mainly through the conventional outflow pathway, moving from the trabecular meshwork into Schlemm's canal and then into the episcleral veins. This drainage is driven by the pressure gradient between the intraocular pressure and the episcleral venous pressure, with most outflow resistance located at the trabecular meshwork. The uveoscleral route constitutes a smaller, secondary pathway that allows some fluid to bypass Schlemm's canal, and its contribution can increase with certain medications or conditions, but it is not the primary exit. The retina is not a drainage route for aqueous humor, and the lacrimal drainage system handles tears, not intraocular fluid.

Access more questions from this quiz

Continue to Common Eye Disorders Practice Test for more practice questions and the full quiz experience.

Access More Questions