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The uvea (/ ˈ j uː v i ə /; [1] derived from Latin: uva meaning "grape"), also called the uveal layer, uveal coat, uveal tract, vascular tunic or vascular layer, is the pigmented middle layer of the three concentric layers that make up an eye, precisely between the inner retina and the outer fibrous layer composed of the sclera and cornea.
6 sie 2024 · What is the uvea? The uvea is the middle of three layers that make up your eyes’ outer walls. The term “uvea” comes from words in Latin and Ancient Greek that mean “grape.” That’s because, from the outside, most of the uvea looks like the outside of a grape.
The uvea, also known as the vascular tunic, is a pigmented layer that provides vital nourishment to the eye's delicate tissues. Its primary functions include regulating the amount of light entering the eye and supplying oxygen and nutrients to the retina.
27 lut 2019 · The uvea is the pigmented middle layer of the eyeball. It has three segments: the iris, the ciliary body and the choroid. Iris: The iris of the eye is the thin, circular structure made of connective tissue and muscle that surrounds the pupil. The color of our eyes is determined by the amount of pigment in the iris. [Learn more about eye color.]
The middle coat of the eye is called the uvea (from the Latin for “grape”) because the eye looks like a reddish-blue grape when the outer coat has been dissected away. The posterior part of the uvea, the choroid, is essentially a layer of blood vessels and connective tissue sandwiched between the sclera and the retina.
1 sty 2014 · The uveal tract (also termed tunica vasculosa) consists of the iris, ciliary body and the choroid and is the ‘middle’ layer of the eye (Fig. 10.1). It is a highly vascularised and pigmented tissue and provides several essential functions to the eye, including nutritive supply to almost all intraocular structures, production of aqueous ...
1 sty 2018 · Definition. The uvea is a vascular, pigmented structure of the eye composed of three different parts: the iris, the ciliary body, and the choroid. It lies between the sclera and the neuroepithelium and contains melanocytes that give it its unique color.
