Table 1.

Mean RNFL Thickness and Displacement

	Lumbar Puncture	CSF Shunt	Medical Treatment	Row Label
	A	B	C
Mean RNFL thickness
Baseline, pre
OD	309 μm ± 136	344 μm ± 95	294 μm ± 137	a
OS	303 μm ± 167	304 μm ± 121	262 μm ± 140	b
Post
OD	253 μm ± 129	173 μm ± 70	95 μm ± 23	c
OS	234 μm ± 123	162 μm ± 101	94 μm ± 23	d
Mean displacement
OD	−74 μm ± 96	−294 μm ± 175	−211 μm ± 190	e
OS	−105 μm ± 80	−366 μm ± 80	−211 μm ± 172	f

The table summarizes the pre–post mean (±standard deviation) RNFL thickness of patients with papilledema of each eye from the three cohorts. Each column is labeled with group letter in uppercase; each row is labelled with lowercase letter in the last column on the right. Mean displacement for each eye represents the distance between baseline pre and post positions of the RPE/BM layer at the border of the BMO. Negative values represent a relative posterior axial displacement (away from the vitreous). The mean RNFL calculations from group B are based on six of nine patients with papilledema; three of the patients with optic atrophy were excluded. There was no significant difference in the mean RNFL thickness at baseline between any of the three groups. The drop in RNFL thickness between the baseline and post RNFL was statistically significant for all three groups and for each corresponding eye.