Anterior chamber (aqueous humour)

Camera anterior bulbi

Sensory (eye & ear)OrgansHeadLeft and right

View left in 3D View right in 3D

What it is
The fluid-filled space between the back of the cornea and the front of the iris and lens, filled with clear aqueous humour made by the ciliary body.
Function
Aqueous humour nourishes the lens and cornea and maintains the intraocular pressure (10-21 mmHg).
Size
About 3 mm deep centrally, volume ~0.25 ml; aqueous is replaced roughly every 100 minutes.
Clinical note
If drainage at the angle is blocked, pressure rises (glaucoma) and slowly damages the optic nerve; a shallow chamber predisposes to acute angle-closure.