TNFRSF18 and Schnyder corneal dystrophy: Notably, the activity of immunosuppressive molecules like LAG3, LGALS9, PD-L1(PDCD1), and CTLA4 was negatively correlated with SCD expression, whereas immune-activating molecules such as TNFRSF18, TNFSF4, and CD47 were positively correlated.