The
aqueous humour is a transparent, gelatinous fluid similar to plasma, but containing low protein concentrations. It is secreted from the
ciliary epithelium, a structure supporting the lens. It is located in the
anterior and
posterior chambers of the eye, the space between the
lens and the
cornea. It is not to be confused with
vitreous humour, which is contained within the larger cavity of the eye behind the lens.