The following risk loci were observed for ocular sarcoidosis: rs2206593 near PTGS2 (p = 0.0096; OR = 2.20), and two variants near IL18, however with opposite directionality: rs1946518 (p = 0.006; OR = 1.61) and rs189667 (p = 0.004; OR = 0.59). Here, IL18 is linked to ocular sarcoidosis.