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Table 1 Summary of research diagnostic criteria for BCR as defined at the 2006 UCLA international workshop [28]

From: Birdshot chorioretinopathy: current knowledge and new concepts in pathophysiology, diagnosis, monitoring and treatment

Required characteristics Disease in both eyes
≥3 peripapillary birdshot lesions (cream-colored, irregular or elongated choroidal lesions with long axis radiating from optic disc)
≤1+ anterior vitreous cells
≤2+ vitreous haze
Supportive characteristics HLA-A29+
Retinal vasculitis
Cystoid Macular Oedema (CMO)
Exclusion criteria Keratic precipitates
Posterior synechiae
Presence of infectious, neoplastic or other inflammatory diseases that can cause multifocal choroidal lesions