Has someone ever told you your eyes are moving when you are feeling vertigo? That eye movement is called nystagmus, and it is one of the cardinal signs of benign paroxysmal positional vertigo (BPPV)!
Nystagmus is a rhythmic, uncontrollable eye movement that is being driven by our vestibular system.
When we have BPPV, the presence of the crystals in our inner ear canals creates an incorrect signal, making our vestibular system think we are turning our head ↪️.
Because of reflexes that exists between our 👂ear and our 👀 eyes; reflexes that help us maintain stable vision while we are moving; this incorrect signal triggers the reflex and this is what creates the nystagmus.