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Aims: To analyse the clinical features, systemic associations, treatment and visual outcomes of uveitis in children from a referral centre in São Paulo, Brazil., Methods: Clinical records of patients under 16 years old who attended the Uveitis Service, Hospital das Clinicas, Faculdadede Medicina, Universidade de São PauloFMUSP, between April and September 2017, were reviewed retrospectively. Patients with incomplete medical records, previous ocular trauma, or less than six6 months of follow-up were excluded., Results: Thirty-nine children (25 female/14 male) were included. There was predominance of bilateral (89.7%), asymptomatic (56.4%) and recurrent/chronic cases (84.6%). The mean age at study inclusion was 10.7±3.4 years (range 3-16 years). Improvement or preservation of visual acuity (VA) was observed in 27 patients (84%); VA was not informed in 8 patients. Patients were referred early to tertiary centre (55% within 6 months of uveitis diagnosis). Anterior uveitis was the most common involvement (46%), followed by intermediate uveitis (26%). Juvenile idiopathic arthritis (JIA)-associated uveitis (41%) and immune-mediated intermediate uveitis (25.6%) were the principal non-infectious conditions; ocular toxoplasmosis (7.7%) and toxocariasis (5.1%) were the most common infectious conditions. Ocular complications were observed at first visit in 46% of patients and in 90% during final evaluation. Oral prednisone, immunosuppressive therapy (IMT) and/or biologic agents were used in all non-infectious conditions (32 children, 82%); IMT and/or biologic agents were used in all patients with JIA-associated uveitis and in 50% of patients with immune-mediated intermediate uveitis., Conclusion: Paediatric patients with uveitis are referred early to this centre and, although severe, adequate management with systemic IMT may preserve VA., Competing Interests: Competing interests: None declared., (© Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.)

Aim: To evaluate the choroidal thickness (CT) in patients with long-standing Vogt-Koyanagi-Harada (VKH) disease using enhanced depth imaging optical coherence tomography (EDI-OCT)., Methods: A prospective case-control study developed at a tertiary centre at São Paulo, Brazil. EDI-OCT images were obtained in 16 patients (30 eyes) with VKH disease who had had the disease for more than 6 months since disease onset, and in 17 normal individuals controlled by age (32 eyes). Comprehensive ophthalmic examination and EDI-OCT evaluation were performed. CT was measured at the fovea and at 1000 µm intervals from the foveal centre in both temporal and nasal directions. CT was correlated with disease duration, clinical disease activity and fundus-based disease severity., Results: Mean subfoveal CT was 333 µm (±85.8) in controls and 250.7 µm (±93.3) in VKH patients (p=0.002). The choroid was significantly thinner in patients when compared to controls in all but one nasal point. In patients, the CT measurements at the foveal centre presented a negative correlation with disease duration (p<0.001). No significant difference in CT measurements was observed between eyes with and without clinical inflammation (p=0.42). There was a trend towards more severe fundus changes being associated with a thinner choroid (p=0.28)., Conclusions: Patients with VKH and long-standing disease had thinner choroids when compared to controls. Progressive choroidal thinning related to disease duration was observed at the macula of these patients. Whether this finding is part of the natural history of the disease or the result of a clinically undetected choroidal inflammation remains to be determined.