Table 4. Linear regression model of visual acuity differences of affected eye from nadir to follow-up.

	HC-BCVA difference
Predictors	regression coefficient b	95%-Confidence interval	p value
(Intercept)	0.51	0.09–0.92	0.018
Gender [Male]	-0.10	-0.36–0.16	0.454
Age at ON Onset	-0.00	-0.01–0.01	0.774
Time to treatment	-0.01	-0.01–0.00	0.205
OPT	0.11	-0.12–0.35	0.332

Observations n = 51. R2/R2 adjusted 0.073/-0.010. HC-BCVA: high-contrast best corrected visual acuity, documented as logMAR equivalent. ON: Optic neuritis. OPT: Oral prednisone tapering.