The anatomic zone between the cornea and the iris that contains the trabecular meshwork is known as what?

• A. posterior chamber angle
• B. iris root
• C. anterior chamber angle
• D. ciliary sulcus

Answer: (C)

The zone between the cornea and the iris that contains the trabecular meshwork is the anterior chamber angle. This area, also called the iridocorneal angle, is where the drainage pathway for aqueous humor begins, with the trabecular meshwork guiding fluid from the anterior chamber into Schlemm’s canal. The posterior chamber angle lies between the iris and the ciliary body, the ciliary sulcus is behind the iris, and the iris root is the base of the iris—none of these contain the trabecular meshwork. Understanding this helps explain how aqueous humor exits the eye and how angle-closure can disrupt drainage.