Intention-to-treat analysis of the primary parameter of interest.

<p>Mean RNFL thickness at the different time-points given in relation to RNFL thickness of the contralateral healthy eye. Red line = IFN-β, affected eye; blue line = no DMT, affected eye; interrupted red line = IFN-β, healthy eye; interrupted blue line = no DMT, healthy eye; Bars = SEM.