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Table 2 Comparison of participant optic nerve sheath diameter, by plane of measurement, pre-lumbar puncture compared to post-lumbar puncture for all participants

From: Ultrasound measurement of optic nerve sheath diameter pre- and post-lumbar puncture

 

Average diameter (PRE)

Average diameter (POST)

Delta

p

95% CI

Left eye Transverse

5.09

4.8

0.29

0.0566

− 0.0088 to 0.5959

Left eye sagittal

5.02

4.72

0.3

0.0318

0.028 to 0.572

Left eye (averaged ONSD)

5.06

4.76

0.297

0.0037

0.1039 to 0.4896

Right eye transverse

4.84

4.86

− 0.02

0.8873

− 0.3451 to 0.2999

Right eye sagittal

5.04

4.82

0.223

0.0747

− 0.0237 to 0.4703

Right eye (averaged ONSD)

4.92

4.84

0.867

0.5042

− 0.1754 to 0.3488