What is the aqueous humor's role in the eye?

The role of the aqueous humor in the eye is primarily to maintain intraocular pressure. This clear fluid is produced by the ciliary body and fills the anterior chamber of the eye. It provides a cushioning effect, ensuring that the eye maintains its shape and structural integrity, which is essential for proper vision. The constant production and drainage of aqueous humor help to regulate pressure within the eye, preventing conditions such as glaucoma, where increased pressure can damage the optic nerve and lead to vision loss.

While it is true that the aqueous humor contributes to the overall health of the eye and aids in nourishing the cornea and lens, its most significant function is to maintain the appropriate level of intraocular pressure. This pressure is vital for the normal physiological functioning of the eye, including keeping the retina in place and facilitating the eye's optical properties. Without this system of pressure regulation, various ocular problems could arise, leading to severe complications.