For many years, we have used the term ‘vestibular function testing’ with the implication that we are testing the entire vestibular system. In fact, most of our tests, such as the caloric test, vHIT…
The measurement of eye movements is critical for accurate diagnosis and evaluation of treatment progression. However, the position and speed of the head can play a significant role in the diagnosis o…
What is the Sinusoidal Harmonic Acceleration (SHA) test? The Sinusoidal Harmonic Acceleration (SHA) test measures the patient’s Vestibulo-Ocular Reflex (VOR) by rotating the patient in a pendular pat…
VisualEyes 3.2 represents a significant advancement in the field of neurological diagnostics, offering a suite of powerful tools designed to enhance the accuracy and efficiency of patient assessments…
What is positional nystagmus testing? Positional nystagmus testing determines whether a change of position of the patient’s vestibular systems in space provokes nystagmus. Some nystagmus is only evid…
Written by Kristen Janky, Au.D., Ph.D., CCC-A You should suspect children of having vestibular loss if they have complaints of dizziness, if they have severe or profound sensorineural hearing loss, i…
What is the Velocity Step Test? The Velocity Step Test measures the patient’s Vestibulo-Ocular Reflex (VOR) by rotating the patient at an acceleration impulse of 100°/s2 to a fixed chair velocity wit…
What are saccades? Saccades are fast and voluntary eye movements that bring images of a new object onto the fovea, which is part of the retina that is reponsible for successful visual acuity. What is…
System setup Before beginning your first vHIT for VORTEQ test, open System Default Settings from the main screen and select Head Sensor from the side panel. Ensure that the connection type is set to…
The spontaneous nystagmus test forms part of the ocular motor sub-tests within the VNG test battery. There are three clear reasons for performing this test. The first is that a recorded spontaneous n…
What is the Dix-Hallpike test? The Dix-Hallpike test, also referred to as the Dix-Hallpike maneuver, is a diagnostic maneuver used to identify benign paroxysmal positional vertigo (BPPV). The Dix-Hal…
This video by Jack Bennett - International Clinical Trainer at the Interacoustics Academy - describes the clinical process, interpretation and clinical utility of the Sinusoidal Harmonic Acceleration…
