Table 4.

Potential for safe driving as judged by the occupational therapist

	Drivers with Normal Fields	Hemianopia	p-value normal visual field vs. hemianopia	Quadrantanopia	p-value normal visual field vs. quadrantanopia
	n (%)	n (%)		n (%)
Non-interstate driving	N=30	N=22	.0098	N=8	.0497
Yes, with no restrictions	30 (100)	16 (72.7)		7 (87.5)
Yes, but with restrictions	0 (0)	1 (4.6)		0 (0)
No	0 (0)	5 (22.7)		1 (12.5)
Interstate driving1	N=29	N=12	.5049	N = 7	.356
Yes, with no restrictions	28 (96.6)	11 (91.7)		6 (85.7)
Yes, but with restrictions	0 (0)	0 (0)		1 (14.3)
No	1 (3.4)	1 (8.3)		0 (0)

¹10 hemianopic drivers, 1 quadrantanopic drivers, and 1 driver with normal visual fields were not evaluated on the interstate.