Which statement is true regarding the trabecular meshwork and its posterior border?

Which statement is true regarding the trabecular meshwork and its posterior border?

• A. Scleral Spur marks the posterior border of the trabecular meshwork
• B. Schwalbe line marks the posterior border of the trabecular meshwork
• C. Schlemm's canal marks the border
• D. Iris root marks the border

Answer: (A)

The main idea is how the trabecular meshwork is bounded in the anterior chamber angle. The scleral spur forms the posterior border of the trabecular meshwork, with the meshwork extending forward to Schwalbe’s line, which marks the anterior border. This arrangement helps define the drainage pathway from the anterior chamber into Schlemm’s canal, which lies just behind the meshwork and serves as the channel it drains into. Schwalbe’s line is not the posterior border; it marks the anterior limit. The iris root is located more anteriorly and does not define the posterior edge of the trabecular meshwork.

The main idea is how the trabecular meshwork is bounded in the anterior chamber angle. The scleral spur forms the posterior border of the trabecular meshwork, with the meshwork extending forward to Schwalbe’s line, which marks the anterior border. This arrangement helps define the drainage pathway from the anterior chamber into Schlemm’s canal, which lies just behind the meshwork and serves as the channel it drains into. Schwalbe’s line is not the posterior border; it marks the anterior limit. The iris root is located more anteriorly and does not define the posterior edge of the trabecular meshwork.