The study group will include patients aged 21 years or older attending the Uveitis Clinic at the Casey Eye Institute at OHSU who have uveitis of the following subtypes:

1. ankylosing spondylitis

2. sarcoidosis

3. Behçet's disease

4. toxoplasmosis

5. herpetic acute retinal necrosis; AND

6. idiopathic uveitis

Another group of patients, also aged 21 years or more, with the following diseases but no uveitis, will be recruited from the Rheumatology Clinic at OHSU as follows:

1. ankylosing spondylitis

2. sarcoidosis; AND

3. Behçet's disease

The study group will also include 30 normal control volunteers aged 21 years or older.

Uveitis Gene-Expression Profiling

What this study is about