Table 1.

Sample characteristics

	HC	VH–	VH+
n	20	19	16
Age (years)	69.3 (6.55)	66.5 (8.02)	71.06 (6.75)
Females (n)a	14	7	3
Visual acuitya	0.93 (0.33)	0.97 (0.42)	0.66 (0.22)
Cognitive abilityb	27.9 (1.66)	25.6 (2.89)	22.7 (2.47)
Medications (n)	–	4.84 (3.59)	6.25 (3.26)
Parkinsonism severityc	–	33.4 (18.47)	53.8 (18.58)

^a p < 0.05

^b p < 0.001

^c p < 0.01