Although having red or bloodshot eyes is usually a temporary symptom of irritation, it may also be a sign of Uveitis. Uveitis occurs when the middle layer of the eyeball gets inflamed. This layer, called the Uvea, contains many blood vessels that nourish the eye. Causes of Uveitis can range from infections like shingles or Lyme’s disease, to systemic diseases such as lupus or rheumatoid arthritis. Left untreated, Uveitis can damage vital eye tissue, leading to permanent vision loss. If your eye suddenly becomes red, or your eyes are continually red, contact your Retinologist at High Country Macula for a diagnosis.