An illustration depicting the outflow pathway of the aqueous humour of the anterior and posterior chambers of the eye. The aqueous humour is a fluid secreted by the ciliary body in order to maintain intraocular pressure and nourish ocular tissue such as the cornea, lens and trabecular network. The fluid is secreted into the posterior chamber and flows through the pupil into the anterior chamber of the eye. From there it travels through the trabecular meshwork and drains into Schlemm's canal.