“…Over time, these activated T cells produce inflammatory cytokines, especially T helper (Th)1 cytokines, such as interferon (IFN)-γ and interleukin (IL)-2, which attract inflammatory cells such as B cells, macrophages, and retinal microglia, which can then damage retinal tissue. Thus, as intraocular inflammation develops, activated T cells and antigen-specific T cells are present in the retina [ 42 - 45 ]. As a result, we studied the sensitivity of peripheral blood T cells.…”