Vestibular neuritis partially or totally destroys the afferents of the superior vestibular nerve (sometimes inferior). The acute phase passes, but the question of resuming driving is not resolved with the disappearance of rotational vertigo. It depends on the quality of central compensation, the ongoing medication treatment, and the French regulatory framework.
Central compensation and actual driving ability
The central nervous system does not regenerate the cells of the damaged vestibular nerve. It recalibrates the remaining sensory inputs (vision, proprioception, contralateral vestibule) to restore functional postural and oculomotor control. This process of sensory substitution directly conditions the ability to drive.
A patient with incomplete compensation retains a vestibulo-ocular reflex asymmetry, which causes oscillopsia during rapid head movements. In driving, this translates to visual instability during lateral checks, lane changes, or glances in the mirrors. The issue is not the clear rotational vertigo, but rather a transient visual blur and an extended reaction time on dual attention tasks.
We observe that patients who resume driving too early confuse the absence of spontaneous vertigo with complete compensation. The caloric test or the video Head Impulse Test (vHIT) may show a persistent deficit while the patient feels stable at rest. The question of vestibular neuritis sequelae and driving therefore requires an instrumental assessment before any resumption, not just a subjective evaluation.
Vestibulo-suppressant medications: hindrance to recovery and risk while driving
Vestibular antihistamines (meclizine, acetyl-leucine) and benzodiazepines prescribed during the acute phase should not exceed two to three days of use. Beyond that, they hinder the neuronal plasticity necessary for central compensation.
Prolonged use of vestibulo-suppressants delays functional recovery and accumulates two risks for driving: drowsiness and psychomotor slowing on one side, and maintenance of an under-compensated imbalance on the other. The patient remains unfit to drive as long as the treatment is ongoing or compensation is not effective.
We recommend a rapid withdrawal of these medications, followed by early vestibular rehabilitation. The current trend is to start vestibular physiotherapy as soon as the subacute phase, which shortens the time to return to complex activities, including driving.
Early vestibular rehabilitation and resumption timeline
Rehabilitation relies on exercises for adapting the vestibulo-ocular reflex, sensory substitution, and habituation. Started in the first days after the crisis, it accelerates compensation compared to delayed management.
A often overlooked point: the vestibular physiotherapy sessions themselves can cause transient imbalance. Driving immediately after a session is contraindicated, especially during the first consultations where stimulation maneuvers are the most destabilizing. Plan for a companion or alternative transport for the first sessions.
French regulatory framework: decree of March 28, 2022, and medical examination
The decree of March 28, 2022, classifies vestibular disorders in class III (ENT and pulmonary) of the pathologies evaluated during the medical examination for the driving license. Vestibular neuritis falls under this framework as soon as symptoms persist or crises are unpredictable.
- For the light group (license B), incompatibility applies as long as the crises are not controlled. Once the pathology is stabilized, fitness may be granted temporarily, based on a specialized ENT opinion.
- For the heavy group (license C, D, professional transport), any unstable vestibular pathology is generally incompatible with driving. The threshold is higher, and the duration of restriction is often longer.
- The validity period of temporary fitness varies according to the approved physician, generally between six months and five years, depending on the documented degree of compensation.
The approved physician evaluates clinical stability, not just the absence of complaints. They may request an instrumental vestibular assessment (vHIT, videonystagmography) to objectify compensation. The specialized ENT opinion is the pivot of the fitness decision, not just the general practitioner.
Obligation to declare and driver responsibility
In France, there is no legal obligation for the patient to spontaneously declare their vestibular neuritis to the prefecture. However, in the event of an accident, a known and undeclared vestibular pathology may lead to a refusal of coverage by the insurer and engage the driver’s criminal liability.
We recommend undergoing the medical examination as soon as the diagnosis is made, without waiting for the end of rehabilitation. This allows for formalizing a temporary incompatibility period and securing the subsequent resumption from an insurance perspective.
Persistent sequelae after vestibular neuritis: when driving remains compromised
The majority of patients recover a balance function compatible with driving within a few weeks to a few months. A minority retains lasting sequelae that complicate the resumption of driving.
- Persistent positional vertigo (PPPD): chronic sensation of instability worsened by visually complex environments (city driving, tunnels, multi-lane highways). This functional disorder can occur even when peripheral vestibular compensation is satisfactory.
- Residual oscillopsia during rapid head movements, objectifiable on vHIT by reduced gain on the affected side.
- Disproportionate cognitive fatigue: the brain compensates for vestibular deficit by relying more on visual and proprioceptive inputs, which generates increased attentional load. After an hour of driving, vigilance may drop significantly.
For these patients, the resumption of driving requires a functional assessment in real situations, possibly on a driving simulator in a specialized center. The road test allows for testing cervical rotations, lane changes, and tolerance to lateral visual flows.
Regular ENT follow-up remains the best tool to document the evolution of compensation and adjust the duration of restriction. A stable and well-compensated vestibular deficit does not prohibit driving, but it requires monitoring and periodic re-evaluation of fitness.
