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Uveitis (also known as iridocyclitis) is the inflammation of the uvea, the pigmented layer that lies between the inner retina and the outer fibrous layer composed of the sclera and cornea.The uvea consists of the middle layer of pigmented vascular structures of the eye and includes the iris, ciliary body, and choroid. Uveitis is an ophthalmic emergency and requires a thorough examination by an ophthalmologist and urgent treatment to control the inflammation. ==Classification== Uveitis is classified anatomically into anterior, intermediate, posterior, and panuveitic forms—based on the part of the eye primarily affected.〔Jabs DA, Nussenblatt RB, Rosenbaum JT. Standardization of Uveitis Nomenclature (SUN) Working Group. Standardization of uveitis nomenclature for reporting clinical data. Results of the First International Workshop. Am J Ophthalmol 2005;140:509-516.〕 Prior to the twentieth century, uveitis was typically referred to in English as "ophthalmia." * Anterior uveitis includes iridocyclitis and iritis. Iritis is the inflammation of the anterior chamber and iris. Iridocyclitis presents the same symptoms as iritis, but also includes inflammation in the ciliary body.〔http://www.meduweb.com/showthread.php?t=29564〕 Anywhere from two-thirds to 90% of uveitis cases are anterior in location. This condition can occur as a single episode and subside with proper treatment or may take on a recurrent or chronic nature. * intermediate uveitis, also known as pars planitis, consists of vitritis—which is inflammation of cells in the vitreous cavity, sometimes with ''snowbanking'', or deposition of inflammatory material on the pars plana. There are also "snowballs," which are inflammatory cells in the vitreous. * Posterior uveitis or chorioretinitis is the inflammation of the retina and choroid. * Pan-uveitis is the inflammation of all layers of the uvea. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「uveitis」の詳細全文を読む スポンサード リンク
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