The Angle Structures

The Angle Structures are formed by the tissues posterior to the cornea and anterior to the iris.

(Fig. 6)

Included in the angle structures are (1) the root of the iris, (2) a portion of the anterior surface of the ciliary body, (3) a spur from the sclera, (4) the canal of Schlemm, and (5) the corneo-scleral trabeculum.

Aqueous humor leaves the eye by filtering through the crevices of the trabecular meshwork. The small channels of the trabecular meshwork are tiny pores through which aqueous humor travels until it reaches the canal of Schlemm. From the canal of Schlemm the aqueous humor leaves the eye through the aqueous veins penetrating the sclera. Obstruction within the trabecular meshwork or the angle structures results in glaucoma