Figure 3. Decreased viability after siramesine treatment as shown by the increased nuclear propidium iodide staining. Human lens epithelial cells (HLEC) were exposed to solvent (0.05% DMSO; A), 5 µM siramesine (B) and 15 µM siramesine (C) for 3 h and stained with propidium iodide (red) and calcein (green).