An inflammation of the middle layer of the eye, which includes the iris (coloured part of the eye) and adjacent tissue, known as the ciliary body. If untreated, it can cause permanent damage and loss of vision from the development of glaucoma, cataract, or retinal oedema. Anterior uveitis can occur as a result of trauma to the eye, such as a blow or foreign body penetrating the eye. It can also be a complication of another eye disease, or it may be associated with general health problems such as rheumatoid arthritis, rubella, or mumps. In most cases, there is no obvious underlying cause. Signs/symptoms may include a red, sore, and inflamed eye; blurring of vision; sensitivity to light; and/or a small pupil. (Ref: AOA)