VNG is an abbreviation that stands for Videonystagmography. It is a diagnostic tool used in the field of otolaryngology (ear, nose, and throat) to evaluate and assess the functioning of the vestibular system and help diagnose balance disorders.
Videonystagmography combines video recordings and eye movement tracking technology to measure and analyze a patient's eye movements during different tasks and stimuli. By monitoring the eye movements, VNG can provide valuable information about the condition and functioning of the vestibular system, which includes the inner ear and the brainstem pathways responsible for balance and coordination.
During a VNG test, the patient is required to perform a series of specific head and eye movements while wearing infrared goggles that record their eye movements. The test involves various components, including caloric testing where warm and cool air or water is used to stimulate the inner ear, and positional testing where the patient's head is moved into different positions to evaluate any abnormal eye movements.
The data collected during the VNG test is analyzed by medical professionals to assess the patient's vestibular function, detect any signs of balance disorders, such as benign paroxysmal positional vertigo (BPPV), labyrinthitis, or Meniere's disease, and aid in the development of an appropriate treatment plan.
Overall, VNG is a valuable tool for medical professionals to evaluate and diagnose balance disorders by analyzing eye movements and assessing vestibular system function.
