Figure 4
From: Reactivity in the human retinal microvasculature measured during acute gas breathing provocations
(A) Frequency histogram of proportional change for all 70 segments following isocapnic hyperoxia (blue, referenced as O2) or isoxic hypercapnia (purple, referenced as CO2), and for all 67 segments analysed following 10 Hz flicker (orange, referenced as 10 Hz FL). (B) Box plot showing the maximum, minimum, median and interquartile range of the distribution for all 70 segments following isocapnic hyperoxia, isoxic hypercapnia and all 67 segments following flicker. (C) Difference in mean and (D) standard deviation of all possible combinations for flicker (FL), isocapnic hyperoxia (O2) and isoxic hypercapnia (CO2) conditions with bootstrapped 95% confidence intervals. Asterisks denote statistical significance (p < 0.05).
