What function does aqueous humor serve in the eye?

Aqueous humor plays a crucial role in maintaining the overall health and function of the eye, with one of its primary functions being the maintenance of a constant intraocular pressure. This clear fluid is produced by the ciliary body and fills the anterior and posterior chambers of the eye. Maintaining this pressure is essential for keeping the eye in shape, allowing for proper light refraction and ensuring that the eye does not collapse or become misshapen.

The constant pressure provided by aqueous humor allows the structures within the eye, such as the cornea and lens, to remain correctly positioned, which is vital for clear vision. The regulation of this internal pressure also contributes to the prevention of conditions like glaucoma, where increased intraocular pressure can lead to damage of the optic nerve.

While aqueous humor does have additional roles, such as supplying nutrients and waste removal, its most critical function is the maintenance of intraocular pressure.