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Cytotoxicity assessments. Cell viability of HLEC (A), HCEC (B), and ARPE-19 (C) exposed to different concentrations of INDOM (50 μM, 100 μM, 300 μM, and 500 μM) for 24 h. (D) Live/dead cell (calcein-AM/PI) test of the HCECs exposed to different concentrations of INDOM (100 μM, 300 μM, and 500 μM) for 24 h (Scale bar, 500 μm). (E) H&E staining of the corneas, and retinas in each group (Scale bar in cornea images, 250 μm; scale bar in retina images, 100 μm).
