The ciliary body is a circular structure that is an extension of the iris, the colored part of the eye. The ciliary body produces the fluid in the eye called aqueous humor. It also contains the ciliary muscle, which changes the shape of the lens when your eyes focus on a near object.

What is ciliary body?

Listen to pronunciation. (SIH-lee-ayr-ee BAH-dee) A part of the middle layer of the wall of the eye. The ciliary body is found behind the iris and includes the ring-shaped muscle that changes the shape of the lens when the eye focuses.

What is ciliary body made of?

The ciliary body is composed of muscle, vessels and epithelium.