Michel L, et al. - In this study, experts examined the recovery of dynamic visual acuity (DVA) in 28 unilateral hypofunction (UVH) individuals whose unilateral deficit was attested by clinical history and video head impulse test (vHIT) in order to determine whether the effects of vestibular rehabilitation therapy (VR) depend or not on the moment when it is applied and examine how the recovery mechanisms could rely or not on the timing of VR. The data provide the first demonstration in patients with UVH that earlier is better to improve passive aVOR gain and DVA. Gaze stabilization exercises will benefit from plastic events occurring in brain structures during a sensitive period or opportunity time window to develop optimal functional reorganizations. This finding is theoretically very necessary for the VR programs to restore the aVOR gain instead of hiring compensatory saccades supporting gaze stability.