Uveitis (u-ve-I-tis) is inflammation of the uvea, the middle layer of the eye. The uvea consists of the iris, choroid and ciliary body. The choroid is sandwiched between the retina and the white of the eye (sclera), and it provides blood flow to the deep layers of the retina. The most common type of uveitis is an inflammation of the iris called iritis, anterior uveitis.