Figure 1 of Bredow, Mol Vis 2014; 20:683-690.

Figure 1. Induction of bullous keratopathy with intracameral benzalkonium chloride injection. A decrease was observed in the endothelial cell density (ECD) in the eyes treated with benzalkonium chloride (BAK) compared to the untreated fellow eyes. Cell counts (top), Alizarin Red S staining (middle), and clinical picture (bottom) are shown.