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Changes in parameters over a 12-hour period in a seated position. Plots depict mean change ± standard error from the 7 a.m. baseline for parameters obtained during the seated experiment (n = 30). Parameter values at each time point were compared to those obtained at the 7 a.m. baseline, and statistically significant differences are denoted with an asterisk (P < 0.05). RNFLT, retinal nerve fiber layer thickness; ChoroidT, choroid thickness.
