Figure 4: MSCs improve corneal wound healing. A–D Fluorescein-stained corneas of the control group show reduced recovery in reference to group treated with MSCs. E Percentage analysis of fluorescein-stained corneas highlights a significant statistical difference between the two groups: MSC group stained in a very lower manner than the control group, confirming the acceleration of corneal wound healing. Source: Yao L, Li ZR, Su WR, Li YP, Lin ML, Zhang WX, Liu Y, Wan Q, Liang D. Role of mesenchymal stem cells on cornea wound healing induced by acute alkali burn. PLoS One. 2012;7(2):e30842. doi: 10.1371/journal.pone.0030842. Epub 2012 Feb 17.