In animals with HSV, topical administration of RvE1 reduced the influx of CD4+ T cells (both TH1 cells and TH17 cells) and neutrophils, decreased production of inflammatory cytokines including IFNγ and IL-6, and increased levels of the anti-inflammatory cytokine IL-10 (Fig. 4) (Rajasagi et al. 2011). Overall, RvE1 significantly reduced stromal keratitis. Similar results were demonstrated with PD1 (Fig. 4) (Rajasagi et al. 2013). Besides, AT-RvD1 treatment significantly reduced the degree of corneal angiogenesis and the severity of stromal keratitis lesions, and AT-RvD1 treated mice had fewer Th1 and Th17 cells in the infected cornea, as well as the reduced number of inflammatory cells, including neutrophils (Rajasagi et al. 2017).