Table 1 Comparison between the patients and control group according to P100 wave and IOLD of PRVEPs

Latency (msec)

 Binocular field

  Mean ± SD

106 ± 8.8

99.3 ± 3.0

t = 5.486^*

 < 0.001^*

 Right monocular

  Mean ± SD

107 ± 9.0

99.4 ± 2.9

t = 5.978^*

 < 0.001^*

 Left monocular

  Mean ± SD

108 ± 9.4

100 ± 2.7

t = 6.364^*

 < 0.001^*

IOLD (msec)

 Median (Min.–Max.)

2.0 (0–16)

1.0 (0–4)

U = 1237.5^*

0.003^*

Amplitude (µV)

 Binocular field

  Median (Min.–Max.)

8.25 (3.0–20.0)

8.50 (5.0–22.5)

U = 1665.0

0.478

 Right monocular

  Median (Min.–Max.)

7.50 (2.50–22.0)

8.0 (4.50–21.5)

U = 1564.0

0.214

 Left monocular

  Median (Min.–Max.)

7.0 (2.10–17.5)

7.50 (5.0–21.0)

U = 1508.5

0.125