. 2020 Jun 20;10(3):189–196. doi: 10.4103/tjo.tjo_22_20

Table 5.

Comparison of contrast sensitivity in fellow eye of neuromyelitis optica with unilateral optic neuritis and control groups

Contrast sensitivity, spatial frequency	NMO (non-ON eyes)	Control	Z	P^a
1.5, median (IQR), log	1.56 (0.34)	1.70 (0.07)	−2.449	0.014
3, median (IQR), log	1.68 (0.23)	1.90 (0.18)	−3.213	0.001
6, median (IQR), log	1.73 (0.37)	1.95 (0.30)	−3.031	0.002
12, median (IQR), log	1.34 (0.74)	1.63 (0.30)	−1.949	0.051
18, median (IQR), log	1.08 (0.91)	1.16 (0.47)	−0.904	0.366

^aMann–Whitney U-test. ON=Optic neuritis, IQR=Interquartile range, NMO=Neuromyelitis optica