Figure 2 of Liang, Mol Vis 2008; 14:204-216.

Figure 2. Draize test evaluation after PBS, BAK Sol, BAK Em, CKC Sol, and CKC Em instillations in rabbit eyes at H4 and D1. The asterisk indicates that p<0.01 compared to the PBS-instilled and CKC Em-instilled groups; the sharp (hash mark) denotes that p<0.05 compared to the BAK Sol-instilled group.