The eye is an important sense organ. It is made up of 3 coats. The outer coat is the cornea and sclera. The middle coat is the uveal tract and the inner coat is the retina. The uveal tract consists of 3 parts. The iris is the visible part of the uvea and gives color to the eye (blue, black, brown). The ciliary body is the middle layer of the uvea which manufactures the fluid inside the eye. The choroid is the posterior layer of the uvea which is rich in blood vessels.
What is Uveitis?
Inflammation or swelling in any of the part of the uveal tract is called uveitis. Depending on the location of inflammation, it is called anterior uveitis (iris and ciliary body is involved), intermediate uveitis (ciliary body and the vitreous is involved), posterior uveitis (choroids and retina involved), panuveitisd (all layers of the uveal tract are involved).