Fig 8. Correlation of pupil constriction time as measured by UP with visual acuity in ON+ eyes.

Black line = regression line, grey area = 95% confidence interval, ms = milliseconds, ON+ eyes = eyes with optic neuritis, r = correlation coefficient of pupil constriction time in UP and visual acuity, UP = ultrasound pupillometry, 95% CI = 95% confidence interval. Individuals are represented by different colors; two dots of the same color represent both ON+ eyes (right and left) of one individual.