Read about the possible causes of uveitis. It often occurs in people with autoimmune conditions such as ankylosing spondylitis, reactive arthritis and Crohn's disease.
Uveitis occurs when the eye becomes inflamed (red and swollen).
Inflammation is the body's response to illness or infection.
Most cases of uveitis are linked to a problem with the immune system (the body's defence against infection and illness).
Rarely, uveitis may occur without the eye becoming red or swollen.
Immune system problems
Uveitis often occurs in people who have an underlying autoimmune condition (where the immune system mistakenly attacks healthy tissue).
Autoimmune conditions known to cause uveitis include:
Uveitis can also be caused by an infection, such as:
Uveitis can also be caused by:
- trauma or injury to the eyes, or eye surgery
- some types of cancers, such as lymphoma, although this is a very rare cause of uveitis
Sometimes, a specific cause of uveitis can't be identified.