THBS1 and age-related macular degeneration: Platelets produce platelet-derived GF (PDGF), IGF-1, TGFβ, VEGF, bFGF, EGF, platelet-derived angiogenesis factor (PDAF), and thrombospondin (TSP), and several authors have used them in eye diseases such as glaucoma, age-related macular degeneration (AMD), and RP [123,124,125,126].