Aqueous humor is a clear, watery fluid found in the front part of the eye, specifically between the cornea and the lens. It is produced by the ciliary body and plays a crucial role in maintaining intraocular pressure, providing nutrients to the eye, and removing waste products. This fluid helps keep the shape of the eye and supports the cornea and lens by providing them with necessary nutrients. Proper balance of aqueous humor is essential for eye health, as an imbalance can lead to conditions like glaucoma, which can damage the optic nerve and affect vision.