The CHOROID is the middle layer of the eyeball. It is the tissue layer in between the sclera and the retina. The choroid has several layers of blood vessels of varying sizes. The choroid is heavily pigmented. This prevents stray light from reaching the retina. The choroid, along with the iris and ciliary body are also referred to as the UVEA. Inflammation in any of these structures is called uveitis.
Uveitis is a common eye disease which has many potential causes. Historically, TB (tuberculosis) was the most common cause of uveitis. It is now known that TB is only one of hundreds of potential causes for this condition. Various systemic medical problems are associated with uveitis. Some examples include: inflammatory bowel diseases, lupus, arthritis and sarcoidosis.
PLEASE NOTE: The information contained on this system is not intended to supplant individual professional consultation, but is offered as a community education service. Advice on individual problems should be obtained directly from a professional.
Copyright, 1994. Richard E. Gans, M.D.
Last Modified: August 23, 1996