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Purpose: To develop an algorithm for the diagnosis of Behçet's disease (BD) uveitis based on ocular findings. Methods: Following an initial survey among uveitis experts, we collected multi-center retrospective data on 211 patients with BD uveitis and 207 patients with other uveitides, and identified ocular findings with a high diagnostic odds ratio (DOR). Subsequently, we collected multi-center prospective data on 127 patients with BD uveitis and 322 controls and developed a diagnostic algorithm using Classification and Regression Tree (CART) analysis and expert opinion. Results: We identified 10 items with DOR >5. The items that provided the highest accuracy in CART analysis included superficial retinal infiltrate, signs of occlusive retinal vasculitis, and diffuse retinal capillary leakage as well as the absence of granulomatous anterior uveitis or choroiditis in patients with vitritis. Conclusion: This study provides a diagnostic tree for BD uveitis that needs to be validated in future studies. [ABSTRACT FROM AUTHOR]

: PurposePediatric uveitis is rare and has been reported to cause increased rates of visual loss compared with adult patients. The reasons for this are unclear. Only one study has been population–based, so the effect of referral bias is not known. We examined the pattern of disease in primary and referral centers to establish the unique characteristics of uveitis in children.: DesignCase control study.: MethodsRetrospective, multicenter, observational study of uveitis starting before the age of 20 years. Two hundred forty-nine patients were recruited from three primary and two referral ophthalmic units. Age-related differences in types of uveitis and systemic disease between hospitals were characterized, as were associations with visual loss.: ResultsThe incidence of uveitis in district hospitals at less than 16 years of age was 4.9/100,000: the most frequent diagnosis was idiopathic uveitis (78%). In referral cohorts the most frequent diagnosis was juvenile idiopathic arthritis-associated uveitis (67%). Other systemic diseases were rare. The most frequent type of uveitis at 0 to 7 years of age was chronic anterior uveitis, posterior uveitis in 8- to 15-year-olds, and acute anterior uveitis in 16- to 19-year-olds. Visual loss (any eye < 6/12) occurred in 17% and was not associated with age, sex, or hospital cohort. It was most frequent in posterior uveitis (25%). Treatment variables were independent predictors of visual loss: systemic treatment 2.2 (1.1– 4.6), surgical intervention 8.2 (3.8–17.6).: ConclusionsIdiopathic uveitis was three times more common in district hospitals. Visual loss was similar to adult uveitis in this study. The increased frequency of severe chronic anterior uveitis in children aged 0 to 7 years and posterior uveitis in older children aged 8 to 15 years accounts for the rate of visual loss seen in previous studies. [Copyright &y& Elsevier]