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

Table 2

Summary of interventions that occurred in each condition and on each side for current (𝑛=4) and noncurrent (𝑛=8) drivers.

	Condition
Intervention	SP drive		RP drive		Total for each intervention
	Current	Noncurrent	Current	Noncurrent
Brake	1 (0; 1 ;  0)^†	9 (3; 5; 1)	0	5 (3; 2; 0)	15
Steering correction	0	6 (1; 0; 5)	1 (0; 0; 1)	1 (0; 0; 1)	8
Verbal advice	1 (0; 1; 0)	4 (2; 0; 2)	0	0	5
Accelerator	0	1 (0; 0 ; 1)	0	0	1
Total for each drive	2 (0; 2; 0)	20 (6; 5; 9)	1 (0; 0; 1)	6 (3; 2; 1)
Overall total	22 (6; 7; 9)		7 (3; 2; 2)		29

^†Numbers in brackets provide the breakdown of interventions by side (seeing side; blind side; no side). Cells with italics are significantly different, as are cells with bold (see Figure 3).