Which structure in the eye helps in maintaining intraocular pressure?

The aqueous humor is crucial for maintaining intraocular pressure within the eye. This clear fluid is produced in the posterior chamber of the eye, specifically by the ciliary body, and flows into the anterior chamber. It provides several key functions, including keeping the eye shape stable and facilitating nutrient distribution to the avascular structures of the eye, such as the lens and cornea.

Intraocular pressure is vital for maintaining the proper shape of the eye and ensuring that it functions effectively. A stable pressure also prevents conditions such as glaucoma, which can occur if the pressure becomes abnormally high due to issues in aqueous humor production or drainage. The fluid's continuous production and drainage through structures such as the trabecular meshwork and Schlemm's canal play a significant role in the overall regulation of this pressure.

While other structures in the eye contribute to its overall health and function, they do not directly regulate intraocular pressure in the same way as the aqueous humor. For instance, the cornea and sclera provide structural support, and the choroid supplies blood and nutrients, but they do not play a direct role in maintaining the pressure balance within the eye.