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Dose response curve for KA-induced IPL swelling as measured with OCT. Ratio indicates mean relative IPL thickness change measured immediately before and after drug application. Error bars represent ±1 SD. The KA was tested at 3, 10, 30, 100, and 300 μM (n = 4, 4, 5, 5, and 6, respectively). Horizontal lines indicate control Ringer mean (solid) ± SD (dotted). *Indicates significant difference (1-tailed paired t-test, P ≤ 0.05).
