vertigo, dizziness, popular science essence 52

Bilateral vestibular disease (BVP): BVP is a common disease of chronic vestibular syndrome (CVS), also known as bilateral vestibular function loss or bilateral vestibular failure. It is a vestibular disease characterized by visual instability during head movement, gait instability during walking, and spatial memory and disorientation. It can be divided into high-frequency semicircular canal damage type, low-frequency type, otolith type, and mixed type. Four different subtypes.