Ophthalmic compositions comprising Inhibitors of Janus kinase-3 ("Jak3") are useful for treating dry eye disorders and other disorders requiring the wetting of the eye.本發明係有關一種詹納斯氏激酶-3(Janus kinase-3,"Jak3")抑制劑,其可用於治療乾眼疾病及需潤濕眼睛之其他疾病。用於治療眼疾之Jak3抑制劑包括化合物3-{(3R,4R)-4-甲基-3-[甲基-(7H-吡咯并[2,3-d]嘧啶-4-基)-胺基]-六氫吡啶-1-基}-3-氧代-丙腈。