Neutrophilia has been consistently correlated with SCD severity (Ohene-Frempong et al., 1998; Miller et al., 2000); neutrophils play a central role in vaso-occlusion through their interactions with both erythrocytes and endothelium upregulating expression of cytoadhesion molecules such as P- and E-selectins, current therapeutic targets (Zhang et al., 2016). Here, OCA2 is linked to Schnyder corneal dystrophy.