Bar graph representing immunoexpression and relative mRNA fold change using quantitative real-time PCR (qRT-PCR). a immunoexpression of PD-1 in group I and group II of uveal melanoma cases; relative mRNA fold change of PD-1 in (b) group I and group II, (c) cases with epithelioid cell type, (d) expression of BAP-1, and (e) cases with UM with metastasis using qRT-PCR (*P < 0.05, **P < 0.01, ***P < 0.001); (f) immunoexpression of PD-L1 in group I and group II of uveal melanoma cases. The relative mRNA fold change of PD-L1 (g) in group I and group II, (h) cases with epithelioid cell type, (i) expression of BAP-1, and (j) cases with UM with metastasis using real-time PCR (*P < 0.05, **P < 0.01, ***P < 0.001)