Inflammation of the uveal tract (see EYE). Iritis is inflammation of the iris; cyclitis, inflammation of the ciliary body; and choroiditis, inflammation of the choroid. The symptoms and signs vary according to which part of the uveal tract is involved and tend to be recurrent. The patient may experience varying degrees of discomfort or pain, with or without blurring of vision. In many cases a cause is never found. Some known associations include various types of arthritis, some bowel diseases, virus illnesses, tuberculosis, syphilis, parasites and fungi. Treatment is with anti-inflammatory drops and occasionally steroid tablets, plus drops to dilate the pupil.