TGFB1 and myopia: These include nearsightedness, the development of retinal fibrosis, corneal epithelial regeneration, and blemishes after LASIK.[19–21] Jobling et al reported in experiments that 3 TGF-β were found in scleral tissue to control fibroblasts and thus regulate collagen production.[20] As myopia began to progress, levels of all 3 types of TGF-β decreased.