what causes iridocyclitis
Any part of the uveal tract can become inflamed[md]the iris (iritis), the ciliary body (cyclitis), or the choroid (choroiditis). More than one part may be involved at the same time (iridocyclitis). The terms ''iritis' and ''uveitis' are often used loosely and interchangeably, and we will do the same here. Although iridocyclitis may be caused by bacteria invading the eye through a corneal ulcer (24.3), it and other forms of uveitis are more often due to a sterile inflammation, usually from an unknown cause. Uveitis of several kinds is common in the developing world. Iritis (more strictly iridocyclitis) has several consequences: (1) A patient's inflamed iris may stick to his lens by posterior synechiae (adhesions, common) or less often to the back of his cornea by anterior synechiae.