Interleukin 4 is one of the sitokin that plays important role in ocular allergic. This research was aimed to evaluate the decreasing concentration ofIL-4 and differences of decreasing IL-4 concentration between the tears of ocular alergic patients treated with pemirolast potassium 0,1% and cromoyn sodium 4%. A double blined randomized clinical trial was performed in. 32 patients with acular all…