Human Eye Anatomy :

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Anterior Chamber Angle and Trabecular Meshwork :
The anterior chamber angle and the trabecular meshwork are located where the cornea meets the iris. The trabecular meshwork is important because it is the area where the aqueous humor drains out of the eye. If the aqueous humor cannot properly drain out of the eye, the pressure can build up inside the eye, causing optic nerve damage and eventually vision loss, a condition known as glaucoma.

Posterior Chamber :
The posterior chamber is the fluid-filled space immediately behind the iris but in front of the lens. The fluid that fills this chamber is the aqueous humor. The aqueous humor helps to nourish the cornea and the lens.

Lens :
The lens is a clear, flexible structure that is located just behind the iris and the pupil. A ring of muscular tissue, called the ciliary body, surrounds the lens and is connected to the lens by fine fibers, called zonules. Together, the lens and the ciliary body help control fine focusing of light as it passes through the eye. The lens, together with the cornea, functions to focus light onto the retina.