**Figure 3. **Effect of CDECM on the remodeling of the extracellular matrix in hConECs and hPECs. The samples were immunostained for matrix
metallopeptidase 9 (MMP-9), tissue inhibitor of metalloprotease 1 (TIMP-1), TIMP-2, and fibronectin. **A**: The membranes were photographed with the Fusion FX image acquisition system. The graphs show the densitometry quantification
of MMP-9 (**B**), TIMP-1 (**C**), TIMP-2 (**D**), and fibronectin (**E**), compared with the untreated human pterygium epithelial cells (hPECs). β-actin was used as the control. Values are mean
± standard deviation (SD; n = 5). Statistical significance is indicated as *p<0.05 and **p<0.01.