Table 2 Peak pupillary constriction, peak latency, 6-s PIPR amplitude, and 90% recovery time (mean ± SD)

B

1.71 ± 0.03 ^a

1.02 ± 0.08 ^c

95.8 ± 1.64

2.83 ± 0.72

G

1.74 ± 0.18 ^b

1.00 ± 0.10 ^c

95.4 ± 1.38

2.82 ± 0.36 ^f,h

2B

1.73 ± 0.23 ^c

1.04 ± 0.09 ^c

96.3 ± 2.21

2.90 ± 0.60 ^h

B + G0

1.73 ± 0.24 ^c

1.02 ± 0.07 ^c

96.2 ± 2.71

2.70 ± 0.59 ^g,h

B + G250

1.75 ± 0.32 ^d

1.05 ± 0.21 ^e

96.2 ± 2.19

2.80 ± 0.87 ^h

B + G500

2.14 ± 0.31

1.29 ± 0.10 ^e

94.3 ± 4.11

3.57 ± 0.56

B + G750

2.24 ± 0.03

1.52 ± 0.06

94.8 ± 2.62

4.03 ± 0.85

B + G1000

2.16 ± 0.25

1.77 ± 0.08

95.6 ± 2.20

4.22 ± 0.83

ANOVA (p value, F value)

p < 0.001, F = 21.976

p < 0.001, F = 111.745

p = 0.418, F = 1.034

p < 0.001, F = 10.450