ocular counter roll (OCR) test

The Video Ocular Counter-Roll (vOCR): A New Means to Assess Utricle Function

The vestibular system (inner ear and brain pathways) has a primary role of providing visual stability associated with head movement through the vestibular ocular reflex (VOR). The VOR is able to provide visual stability by causing the eyes to move in the opposite direction of a head turn or head tilt. For instance, if a…

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atypical bppv dizziness vertigo

Atypical Benign Paroxysmal Positional Vertigo (BPPV)

It is widely accepted that BPPV is the most common peripheral vestibular disorder (inner ear) and it is the most common reason anyone would experience episodic brief vertigo.   Benign Paroxysmal Positional Vertigo   BPPV is an inner ear disorder where otoconia (inner ear crystals) migrate into the semicircular canals (head turn sensors), which results…

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