Information on Aqueous Humours

Aqueous Humour

Aqueous Humour is the thin, water-like fluid that occupies the area between the cornea and the iris. It is produced continuously by the ciliary body which lies behind the iris. The fluid nourishes the cornea and lens and also gives the front of the eye its shape. The aqueous humour maintains the intraocular pressure and inflates the form of the eye. It provides nutrition for the avascular ocular tissues. It carries away waste products from the metabolism of these tissues. It can carry ascorbate in the anterior segment to act as an anti-oxidant. Increased production or decreased outflow of aqueous humour can increase pressure within the eye and lead to glaucoma. Glaucoma can then lead to visual loss and eventually complete blindness.

The fluid flows into the anterior chamber and out through the spongy area at the front of the eye called the trabecular meshwork. The aqueous humour then flows into a drainage canal. It can also flow through the uveoscleral drainage but on a smaller scale to trabecular meshwork. This slightly alkaline substance is vital to the pressure and health of the eyes.

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