Aqueous humour
(Redirected from Humor aquosus)
Introduction[edit | edit source]
The Aqueous Humour (from Latin: aqua meaning "water" and humour meaning "fluid") is a clear, watery fluid found within the eye. Its primary role is to maintain intraocular pressure, provide nourishment to the eye's structures, and remove waste products.
Anatomy and Location[edit | edit source]
The human eye contains various chambers and fluids, among which the aqueous humour is situated in:
- Anterior Chamber: The space between the cornea and the iris.
- Posterior Chamber: The space between the iris and the lens.
Together, these chambers form the anterior segment of the eye, filled with aqueous humour.
Composition and Properties[edit | edit source]
The aqueous humour is a low-viscosity fluid, resembling water in its consistency. It is composed of:
- Water
- Electrolytes (such as sodium and chloride)
- Proteins
- Nutrients (such as glucose)
- Waste products
Its composition ensures that the eye remains nourished while also maintaining a clear optical pathway for vision.
Functions[edit | edit source]
The aqueous humour plays several vital roles in the eye:
- Maintaining Intraocular Pressure: The continuous production and drainage of the aqueous humour help in maintaining a stable pressure within the eye, essential for its shape and function.
- Nutrition: Provides essential nutrients to the avascular structures of the eye, such as the cornea and lens.
- Waste Removal: Carries away metabolic waste products from the eye's structures.
Production and Drainage[edit | edit source]
The aqueous humour is produced by the ciliary body, a part of the eye situated behind the iris. It flows from the posterior chamber, through the pupil, into the anterior chamber, and is eventually drained out through the trabecular meshwork and into the Schlemm's canal.
Clinical Significance[edit | edit source]
An imbalance in the production and drainage of the aqueous humour can lead to elevated intraocular pressure, a primary risk factor for glaucoma, a group of eye diseases that can result in optic nerve damage and vision loss.
Conclusion[edit | edit source]
The aqueous humour is a crucial component of the eye, ensuring its proper function and health. An understanding of its composition, function, and dynamics is fundamental for eye care professionals and those interested in ophthalmic studies.
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