Figure 7 of Song, Mol Vis 2008; 14:161-170.

Figure 7. Senescence-associated β-galactosidase activity stainings in human corneal endothelial cells of ex vivo corneas from the young and old donors. In column A, there are weak and few to no stainings for SA-β-Gal activity in the young donor. In column B, more focal weak and multifocal intense stainings for SA-β-Gal are detected in the old donors. Magnification; 200×.