Figure 3: Detection of apoptosis via TUNEL assay on corneal sections. (A) Normal group, (B) Positive control group, (C) A. gigas Nakai extract 5 mg group, (D) A. gigas Nakai extract 10 mg group. (E) The number of apoptotic (TUNEL-positive) cells per 100 μm tissue. Arrows are irregular and punctate apoptotic cells. Results are expressed as means±SD for 7 mice per group. *Significantly different from positive control group, respectively (P<0.001).