Tab. 2.

Comparison of the mean optic nerve diameter and SWE values between the neuritis side and normal side in the ON group (n = number of eyes)

	ON group, neuritis side (n = 36)	ON group, normal side (n = 36)	p
Optic nerve diameter	4.58 ± 0.23 cm	3.66 ± 0.58 cm	0.019
Optic nerve SWE value	2.49 ± 0.41 m/s and 17.56 ± 4.42 kPa	1.71 ± 0.32 m/s and 9.02 ± 2.34 kPa	0.003 and 0.015
Fat tissue adjacent optic nerve SWE value	1.87 ± 0.32 m/s and 9.65 ± 1.12 kPa	1.47 ± 0.27 m/s and 6.78 ± 1.14 kPa	0.014 and 0.018

ON – optic neuritis; SWE – shear wave elastography Spearman coefficient test. Data are means ± SD (min-max)