Table 4: distribution of ischemic optic neuropathy patients and statistical significance

Group

Number of patients

Number of ischemic optic neuropathy patients

Percentage within their subgroup

P-value

1A (no medical illness and surgery)

119

5

4.2%

0.31

1B (no medical illness and no surgery)

103

0

0

2A (medical illness and surgery)

188

8

4.3%

0.33

2B (medical illness and no surgery)

130

1

0.8%