Clustering analysis established one key module (Figure 4B) and seven key genes (KIR2DL3, KIR3DL2, SH2D1B, KLRC3, KLRC2, GNLY, and GZMB) identified using MCODE were selected as potential hub genes for VKH disease. The gene discussed is KIR2DL3; the disease is Vogt-Koyanagi-Harada disease.