What are anterior and posterior chambers?

The eyes is majorly divided into 3 parts: vitreous chamber, anterior and posterior chambers.

Vitreous chamber is the largest, a clear jellylike substance that fills the back part of the eye lies behind the lens and surrounded by blood vessels

Anterior chamber is in the front section of the eye, separating the cornea and iris and contains a aqueous humor (a clear watery fluid) flowing through to provide nourishment.

The aqueous passes through the posterior chamberlocated behind the iris and flows through the pupil located on the iris' back into the anterior chamber.