Uveitis is also known as iritis, affects the colored part of the eye, the iris. Iridocyclitis is similar, but it includes inflammation of the ciliary body. Intermediate uveitis can be vitritis or pars planitis. Vitreous is an inflammation of the jelly-like part of the eye, the vitreous cavity. Inflammation of the pars plana is called pars planitis. Posterior uveitis is an inflammation of the retina and choroid. Posterior refers to the back of the eye.