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The effects of HA-containing OTC eye drops on corneal epithelial cell viability (A) and proliferation (B) was investigated using the CCK-8 assay. For such, corneal epithelial cells were treated with selected HA-containing OTC eye products at 1:10 and compared to HMWHA and PBS (vehicle control). Error bars: SD. Asterisk represents P ≤ 0.05.
