Caloric Stimulation

Caloric stimulation is a diagnostic test used primarily to assess the function of the vestibular system, which helps control balance. During the test, a clinician introduces warm or cold water into the ear canal. This temperature change causes fluid movements in the inner ear, stimulating balance-related structures. The body's response—such as eye movements—can be measured to evaluate how well the inner ear is working. By observing these responses, doctors can identify issues like vestibular disorders or nerve damage, aiding in diagnosis and treatment planning for balance problems or dizziness.