Fig. 1 | Hypertension Research

Fig. 1

From: Normal-tension glaucomatous optic neuropathy is related to blood pressure variability in the Maracaibo Aging Study

Fig. 1

Distribution of the level (a) and variability (b) of 24-h mean arterial pressure and of intraocular pressure (c). S and K are the coefficients of skewness and kurtosis. The dotted and full lines represent the normal and kernel density distributions. M is the mean of the distribution. The P values are for departure of the actually observed distribution from normality according to Shapiro–Wilk’s statistic. MAP mean arterial pressure, VIM variation independent of the mean MAP level, IOP intraocular pressure

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