videonistagmografia
Videonistagmografía, also known as VNG, is a diagnostic procedure that records and analyzes eye movements to detect nystagmus and assess the vestibulo-ocular reflex. The test uses infrared cameras integrated into goggles to capture digital eye movement data, providing a quantitative evaluation of ocular motility.
The examination includes several components. Spontaneous nystagmus, gaze-evoked nystagmus, and nystagmus induced by positional changes are
Interpretation focuses on the presence, direction, and characteristics of nystagmus, as well as asymmetries in caloric
Advantages of VNG include noninvasiveness, patient comfort, and the ability to quantify eye movements. Limitations include