A Pilot Evaluation of On-Road Detection Performance by Drivers with Hemianopia Using Oblique Peripheral Prisms

Figure 3

Number (median and interquartile range) of interventions in each drive for individual participants. Noncurrent drivers had fewer interventions in the real prism (RP) than the sham prism (SP) drives, and more interventions than current drivers in the SP but not the RP drives. The thick horizontal line within each box is the median; the vertical extent of the box is the interquartile range (IQR); vertical lines at box ends represent the largest nonoutlier data points within 1.5x IQR. Open triangle is a far outlier (>3x IQR).