New goggles could help ER doctors detect strokes faster in dizzy patients

NCT ID NCT05176015

Completed Diagnosis Sponsor: CHU de Quebec-Universite Laval Source: ClinicalTrials.gov ↗

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This pilot study tested whether special magnifying goggles (Frenzel lenses) and a step-by-step diagnostic algorithm help emergency doctors better detect nystagmus—a telltale eye movement—in patients with sudden vertigo. The goal is to improve diagnosis of stroke versus benign inner ear conditions. 120 adults with new-onset vertigo were enrolled. The study focused on feasibility and detection rates, not on treatment outcomes.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: Frenzel Lens (magnifying goggles) and a diagnostic algorithm
What this could lead to: If successful, this approach could help emergency doctors quickly tell whether vertigo is from a harmless inner ear problem or a serious stroke, reducing unnecessary scans and delays.
What could go wrong: This is a small pilot study with only 120 participants, so results may not apply to all patients. The tools may not improve detection enough to change current practice.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

cardiovascular disorder pathologic nystagmus stroke disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

NYSTAGMUS, ACQUIRED STROKE, ACUTE

Contacts and locations

Locations

Centre Hospitalier d'Amqui

Amqui, Quebec, G5J 2K5, Canada
Centre Hospitalier de Matane

Matane, Quebec, G4W 2W5, Canada
Centre Hospitalier de Montmagny

Saint Thomas de Montmagny, Quebec, G5V 3R8, Canada
Hopital Notre-Dame-de-Fatima

Ste. Anne de la Pocatière, Quebec, G0R 1Z0, Canada
Hopital St-Georges

Saint-Georges, Quebec, G5Y4T8, Canada

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