The organs of sight are a pair of eyes in human. The eyes are situated in deep protective   bony cavities, called the orbits or eye sockets of the skull. The study of structure, function and diseases of the eye is called ophthalmology.
The lens and suspensory ligament divide the cavity of the eyeball into two chambers: the anterior small aqueous chamber and the posterior large vitreous chamber. The aqueous chamber itself consists of two cavities: large anterior in front of the iris and behind cornea and small posterior between the iris and the lens. Both the parts of aqueous chamber filled with a clear, watery fluid, the aqueous humour. The vitreous chamber (the largest chamber) is full of thick, transparent, jelly like substance, the vitreous humour or vitreous body. The latter consists of water , protein vitrein, hyaluronic acid and collagen fibres. It is apparently secreted by the retina during development of the eye.
Aqueous Humour vs Vitreous Humour 
Aqueous Humour vs Vitreous Humour

Aqueous humour
Vitreous humour
It occurs in aqueous chamber
It occurs in vitreous chamber
It is a watery fluid
It is a jelly like substance
It is secreted by ciliary processes
It is apparently  secreted by retina during development of eye.
It is continuously absorbed into blood and replaced.
It is absorbed or replaced.
It contains most of the diffusible substances of the plasma
It consists of water (90%), protein vitrein, hyaluronic acid and collagen fibres.
Obstruction in its flow may damage retina by increasing intraocular pressure
It does not flow.
Maintains the shape of the cornea and supply nutrition to both lens and cornea.
Maintains the shape of the eye ball and contribute to intraocular pressure and also to the focussing of light on the retina.

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