In a study of 67 Japanese patients with VKH disease [[106]], six SNPs in PTPN22 (rs3811021, rs1217413, rs1237682, rs3761935, rs3789608, and rs2243471) were shown to have no significant association with VKH disease. The gene discussed is PTPN22; the disease is Vogt-Koyanagi-Harada disease.