The Standardization of Uveitis Nomenclature (SUN) Working Group reported criteria for the diagnosis of uveitis associated with spondyloarthritis or HLA-B27.

Criteria for spondyloarthritis-associated uveitis - all of the following:

(1) anterior uveitis

(2) at least one of the following:

(2a) chronic uveitis with both ASAS-defined spondyloarthritis AND HLA-B27 positivity

(2b) both of the following:

(2b1) acute or recurrent acute, unilateral or unilateral alternating course

(2b2) ASAS-defined spondyloarthritis and/or HLA-B27 positivity

(3) exclusion of syphilis, sarcoidosis, CMV, HSV, and VZV

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