 Objective: Uveitis refers to intraocular inflammatory diseases that are an important cause of visual loss. Standard systemic immunosuppressive medications for uveitis can cause significant adverse effects and many patients continue to experience disease flare-ups. Sirolimus suppresses cytokine-driven T-cell proliferation and thus, inhibits the production, signaling and activity of many growth factors relevant to uveitis. Subconjunctival sirolimus administration could reduce or eliminate the need for topical andor systemic immunosuppressive drugs that could result in reduced morbidity. This protocol will investigate subconjunctival sirolimus as a possible treatment for active anterior uveitis. 