By Millie Brecheisen, physiotherapist in Basel. Updated: 1 October 2026.
The image bounces with every step. You can read a sign while standing still, but struggle to make it out while walking. This sensation, called oscillopsia, may indicate difficulty stabilising your gaze. It describes a symptom, not yet its cause.
A visual sensation with more than one possible cause
Oscillopsia is the impression that the surroundings move, jump or become unstable during walking or head movements. Some people say they can no longer read signs while walking or that the image bounces with every step. This symptom suggests a gaze stabilisation problem, particularly involving the vestibulo-ocular reflex.
Why the vestibulo-ocular reflex matters
The vestibulo-ocular reflex, or VOR, moves the eyes in the opposite direction to the head to keep the image stable. When it is insufficient, particularly in bilateral vestibulopathy, dynamic visual acuity declines. A 2023 clinical review of bilateral vestibulopathy identifies oscillopsia as a central symptom alongside unsteadiness [1].
How is it assessed?
Assessment can compare vision with the head still and during movement, observe compensatory eye movements and measure tolerance at different speeds. vHIT and other instrumented tests quantify vestibular function within ENT or neurological care.
Oscillopsia can also occur in neurological or oculomotor disorders. A significant new symptom therefore warrants a medical diagnosis.
What can rehabilitation offer?
When vestibular hypofunction is responsible, rehabilitation aims to improve gaze stabilisation, use compensatory strategies and strengthen dynamic balance. People with bilateral loss can progress through visual and somatosensory substitution, even when full restoration of the VOR is not possible.
Vestibular implant research specifically aims to partly restore this function. Recent work reports effects on reflexes and dynamic visual acuity, but this remains specialised technology [2].
Measure function and real-life activities
Someone may gain a few lines on a dynamic visual acuity test yet still struggle on a bicycle, while running or on stairs. Rehabilitation therefore needs to include speed, walking, outdoor surfaces and real-life tasks. Chronic symptoms after vestibular hypofunction vary and should be monitored beyond a single test [3].
Clinical clues that guide the assessment
Useful approaches include comparing reading or visual acuity with the head still and moving, observing corrective saccades and relating symptoms to walking. Oscillopsia particularly suggests a bilateral vestibular deficit when it increases with quick movements and is accompanied by unsteadiness in darkness.
Observe vision during movement without rushing to a conclusion
Comparing reading while still and during movement helps clarify the complaint. The test becomes meaningful only alongside the other assessment findings.
- Distinguish blurred vision from the feeling that the image moves or bounces.
- Clarify whether symptoms occur while walking, during head movements or also at rest.
- Relate results to a practical activity: reading a sign, going downstairs or moving outdoors.
Oscillopsia at rest, new nystagmus or neurological signs require specialist advice. The vestibular programme depends on the identified cause.
An individual assessment in Basel
Vestibular physiotherapy in Basel can assess the consequences of a gaze stabilisation problem and monitor progress. Diagnosing the cause may require ENT, neurology or ophthalmology. Available results and examples of difficulties during movement are useful for the assessment.
Frequently asked questions
Are oscillopsia and vertigo the same?
No. Oscillopsia is instability of the visual image, whereas vertigo describes an illusion of movement of the body or surroundings.
Why is it worse while walking?
Every step produces head movements. When the VOR does not stabilise the image well, the difficulty becomes more apparent.
Can glasses correct oscillopsia?
Optical correction can improve static vision when needed, but it does not by itself correct a vestibulo-ocular deficit.
Related articles
- Dizziness and vestibular rehabilitation in Basel
- Bilateral vestibulopathy: unsteadiness in the dark and bouncing vision
- Unilateral vestibular hypofunction: symptoms and rehabilitation
- Balance problems: feeling unsteady without spinning vertigo
Scientific references
[1] van Stiphout L et al. Bilateral vestibulopathy: a clinical update and proposed diagnostic algorithm. Frontiers in Neurology, 2023. Read the reference on PubMed.
[2] Electrical stimulation of the vestibular nerve: evaluating effects and potential optimization in vestibular implants. 2024. Read the reference on PubMed.
[3] Karabulut M et al. Chronic symptoms in unilateral vestibular hypofunction. 2023. Read the reference on PubMed.
This information explains possible mechanisms and rehabilitation options. Diagnosis and treatment depend on an individual assessment.
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