The posterior chamber should not be confused with the vitreous chamber.

The vitreous chamber or postremal chamber occupies posterior 4/5ths of the eyeball.

It is inert in the vitreous chamber and initially doubles its volume in 36 hours before being absorbed in the blood in 10-14 days.

Unlike the fluid in the frontal parts of the eye (aqueous humour) which is continuously replenished, the gel in the vitreous chamber is stagnant.

In rabbits, injections of dopamine prevented the myopic shift and vitreous chamber and axial elongation typically associated with FDM.

Catenary - D. Jackson Coleman proposes that the lens, zonule and anterior vitreous comprise a diaphragm between the anterior and vitreous chambers of the eye.