CD8A and uveitis: Adaptive immune features, including higher proportions and increased clonality of CD4 T cells, CD8 T cells and B cells most strongly drove the separation across PC1 of undifferentiated uveitis with granulomatous KP from HLA-B27 AAU and other cases lacking granulomatous KP, which were more strongly associated with innate features including macrophages, DCs and unconventional T cells (Figure 1D).