SVV vs VertiGuide

Subjective Visual Vertical (SVV) is a test that measures the difference between a person’s perceived vertical and the true vertical. It evaluates gravity perception mediated by the otolith organs, vestibular nerve, and central vestibular pathways, and helps detect asymmetry of vestibular function. Using an audio/video remote control or a variety of game controllers, including those for Nintendo Switch, PlayStation, and Xbox, the user adjusts a displayed line until it is perceived as perfectly vertical. After repeating this procedure 10 times, the application calculates the mean deviation from the true vertical and the standard deviation.

VertiGuide is the app for all a clinician's dizzy needs. Learn the diagnosis algorithms with instructional videos, animations, and flowcharts, all in one offline app. • VertiGuide provides step-by-step educational guides to optimize diagnoses of dizziness and vertigo. • Flow diagrams are joined with instructional animations and videos to help aid your decision-making. • Relevant GRACE-3 guidelines are highlighted. • Clinical sources are easily accessed. • The app's full functionality is available offline to help facilitate easy access anywhere. • VertiGuide is completely ad-free and is offered as an educational tool for clinicians everywhere. This app is intended to be used solely for educational purposes by clinicians and should not be used for medical advice. Any maneuvers demonstrated should not be attempted except by a trained professional. If you or a loved one are suffering from dizziness or any other health concern, please contact your physician.