To describe the clinical characteristics of uveitis occurring in patients with psoriasis and to compare them with patients with idiopathic anterior uveitis and HLA-B27- associated anterior uveitis. Case-control study. The charts of 36 patients with a diagnosis of uveitis and psoriasis visiting the Immunology and Uveitis Service at the Massachusetts Eye and Ear Infirmary between January 2000 and December 2001 were reviewed. Clinical characteristics, therapy, and outcomes of uveitis were compared with 30 randomly selected patients with either idiopathic anterior uveitis or with HLA-B27- associated anterior uveitis. The mean age at presentation for uveitis was significantly higher in patients with psoriasis compared with nonpsoriatic groups (44.6 years in HLA-B27- psoriatic patients vs 35.9 years in HLA-B27- nonpsoriatic patients, P=. 034; 52.7 years in HLA-B27+ psoriatic vs 35.7 years in HLA-B27+ nonpsoriatic patients, P=. 001). Uveitis in patients with psoriasis also tended to be bilateral (62% ) and prolonged (11.2 weeks). HLA-B27+ patients with psoriasis required supplemental therapy with oral nonsteroidal anti-inflammatory drugs (95% confidence interval [CI]1.41 to 5.36, P=. 003) for anterior uveitis more often than did the HLA-B27+ nonpsoriatic group. Patients with psoriasis and uveitis who were HLA-B27+ required oral NSAIDs (95% CI 1.51 to 9.79, P=. 001) for anterior uveitis more often than did HLA-B27- psoriatic patients. Uveitis in patients with psoriasis may have distinguishing clinical features. Further epidemiologic studies are required to determine the strength of association between psoriasis without arthritis but with uveitis.
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