Some research has shown that the expression of inflammatory factors such as connective tissue growth factor (CTGF), type III collagen fibres and α-smooth muscle actin (α-SMA) is increased after glaucoma filtering surgery, thus inducing the proliferation and transformation of fibroblasts into myofibroblasts in conjunctival and scleral tissues, which is a key cause of scar formation after glaucoma filtration surgery [7–9]. The gene discussed is CCN2; the disease is glaucoma.