[HLA-B27 positive anterior uveitis : Clinical aspects, diagnostics, interdisciplinary management and treatment].

Acute anterior uveitis (AAU) associated with human leukocyte antigen (HLA) B27 is the most common form of noninfectious intraocular inflammation and is considered to be a separate clinical entity. Young adults between the ages of 20 and 40 years are predominantly affected. The HLA-B27 positive AAU typically presents as a unilateral, fulminant disruption of the blood-aqueous humor barrier, which is accompanied by pronounced cellular infiltration and fibrinous exudation. Other characteristics are reduced intraocular pressure and a high tendency to relapse, which can also involve the partner eye. Patients with HLA-B27 positive AAU share a high risk for other genetically associated diseases, especially spondylarthritis, chronic inflammatory bowel diseases and psoriasis. As up to 40% of those affected have a systemic disease that has not yet been diagnosed, the ophthalmologist is of major importance for early detection.