Figure 2. Corneal histopathological findings. A: Control group showing normal structure; (B) EIU group with epithelial thickening (double arrow), stromal edema and separation (arrow); (C) EIU+FVX group with reduced pathology; (D) FVX group with normal morphology. Ep: epithelium; St: stroma; En: endothelium. HE staining. Scale bars=50 μm. *p<0.01.