CD4 and eye disorder: –84 Specifically, innate and adaptive immune responses have both been implicated in eye disease and many of these cells (i.e. CD4+ T cell, CD8+ T cell, ILCs, CD4−CD8− T cells, γδT cells, iNK T cells, NK cells, neutrophils, and mast cells) secrete IL17A,21–31 which contributes to many autoimmune disorders in humans.8