Venous plexus of sclera

The Scleral Venous Plexus is formed of fine circular venules that serve to drain aqueous humor from the spaces of iridocorneal angle into the vascular system to maintain fluid homeostasis. It prevents an increase in pressure within the anterior chamber due to the accumulation of aqueous humor.

It is located near the iridocorneal angle, however its position varies depending on the species. In humans, it corresponds to the scleral venous sinus and it's called Schlemm's canal (SC).