Fig. 1.

Aqueous humor (AH), the biological fluid filling both the anterior and the posterior chambers of the eye. AH is secreted in the posterior chamber by the ciliary body arrives into anterior chamber (AC) through the pupil, goes above the anterior face of the iris and leaves the AC via two routes: the conventional (anterior) route is the through the TM, and the unconventional (posterior) route is through the uveoscleral pathway along the ciliary muscle fibers