What are the common tests used in vestibular assessment and what’s their purposes?.

Three of the most frequent tests we use are

• Videonystagmography (VNG): This test measures eye movements to assess the function of the vestibular system. It is used to determine if a vestibular disease may be causing a balance or dizziness problem.
• Rotary Chair Test: This test evaluates the function of the vestibular system by moving the patient in a controlled, rotating chair while eye movements are monitored. It helps in differentiating between central (brain-related) and peripheral (ear-related) causes of dizziness.
• Vestibular Evoked Myogenic Potentials (VEMP): This test measures the sound-induced reflexes of muscles in the neck and eyes, helping to assess the saccule (part of the inner ear) and the vestibular nerve, which are important for maintaining balance.