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Cell viability of human retinal pigment epithelial cells exposed to commercially available loteprednol etabonate (LE). After 24 hours, there was a significant decrease in cell viability for cells exposed to 125, 62.5, or 31.25 μg/mL compared to untreated controls (P<.001). After 2 or 6 hours of exposure, cells treated with 125 or 62.5 μg/mL also showed a reduction in cell viability when compared to untreated controls (P<.01).
