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In-vitro scraping assay (human corneal epithelial cells) measuring the pace of the healing process following a 30-min treatment with 1/10 dilutions of 0.005% cetalkonium chloride cationic oil-in-water nanoemulsion (0.005% CKC EM) or 0.02% benzalkonium chloride solution (0.02% BAK Sol). *P < 0.05 against phosphate buffered saline (PBS); ***P < 0.01 against PBS (two-way analysis of variance followed by Fisher adjustment). H2, two hours; H24, 24 hours.
Adapted from Liang et al.55.
