Akdeniz Vertigo Merkezi

VNG Tests

The process of recording a patient’s eye movements using a video camera is referred to as VNG (Videonystagmography).

Discover the True Cause of Your Vertigo!

Understanding the source of dizziness and problems with your balance is the first step towards the right treatment. Book your appointment for an individualized assessment with our team of experts and regain your health.

VNG tests are more detailed assessments based on recording eye movements generated by visual stimuli and analyzing the functional aspects of the vestibulo-ocular reflex (VOR) pathways.

VNG tests involve a specialized device in which a pair of goggles equipped with cameras connected to a computer system are placed on the patient. This setup measures eye and head movements to evaluate the functions of the balance organs, brain, and cerebellum.

These tests are particularly important in identifying the side and location of lesions in patients presenting with dizziness (vertigo), imbalance (dizziness), lightheadedness (unsteadiness), or ataxia.

Subtests of VNG:

  1. Gaze Tests: Performed to determine the presence of eye movements (nystagmus) during visual stimuli.
  2. Skew Deviation Test: Provides critical information about otolith-ocular pathways.
  3. Head Shaking Test: Conducted by closing the goggles attached to the patient’s eyes. The audiologist moves the patient’s head side-to-side at the same speed. The clinician then stops the head movement and asks the patient to keep their eyes open. Eye movements (nystagmus) observed in this test help diagnose peripheral vestibular dysfunction.
  4. Spontaneous Nystagmus Test: One of the significant indicators of vestibular dysfunction. In this test, the goggles are closed, and eye movements that occur spontaneously in darkness without visual stimuli are recorded. This aids in diagnosing peripheral vestibular dysfunction.
  5. Saccade Test: Used to assess the central nervous system’s ability to adapt to rapid eye movements.
  6. VVOR and VORS Tests: Designed to simultaneously test the coexistence of vestibular and cerebellar pathologies. These tests diagnose vestibulo-cerebellar disorders by observing the presence or absence of saccadic eye movements.

Purpose of VNG Tests

VNG tests are particularly useful in determining whether the condition originates from the inner ear or the central nervous system (cerebellum).

google
Bedirhan Çelik
31 January 2025
google
Ömer Kahraman
21 January 2025
google
Gulfidan Cansu
10 January 2025
google
Sude ÇETİNKAYA
6 January 2025
google
Özlem YILMAZ
4 January 2025
google
Samet Şahin
4 January 2025
google
şükrü erkara
10 December 2024
google
Nur ÜRPER
6 December 2024
google
Sümeyye ÖZKAN
13 November 2024
google
cigdem topcuoglu
12 November 2024
google
mesut Engindeniz
12 November 2024
google
Selda çetin
12 November 2024
google
murat çakır
12 November 2024
google
Ali Erbütlü
9 November 2024
google
İsmail Akdut
9 November 2024
google
Seda Ozdem
9 November 2024
google
Sedat Polat
18 October 2024
google
pınar hakimoğlu
16 October 2024
google
Osman Solmaz
2 October 2024
google
Oktay Polat
24 September 2024
google
furkan bolat
21 September 2024
google
Zeynep HERDEM
5 September 2024
google
yoe
30 August 2024
google
Özlem Rüstem
29 August 2024
google
Leylan Caglayan
18 July 2024
google
Berin Irmak
10 July 2024
google
yahya sahin
5 July 2024
google
Makbule Solak
27 May 2024
google
google
google
ali demir
23 May 2024
google
google
google
Işıl İPEK
22 May 2024
google
Davut Yiğit
14 May 2024
google
ezgi il
10 May 2024
google
google
MUHAMMET KANIK
14 April 2024
google
Habibe Demirok
26 February 2024
google
Eylem Günay
23 February 2024
google
Kerim Başkaptan
18 February 2024
google
Esin Ky
17 February 2024
google
Süleyman Öz
17 February 2024
google
Evrim Topal Kurnaz
17 February 2024
google
Meral Körücü
17 February 2024
google
Nilgün Çelik
17 February 2024
google
Ahmet Doruk
16 February 2024
google
Emel kazel zeybekoğlu
16 February 2024
google
Ömer faruk Taşcı
16 February 2024
google
Aycan Çetin
16 February 2024

Fill out the form and

we will call you

Discover the True Cause of Your Vertigo!

Understanding the source of dizziness and problems with your balance is the first step towards the right treatment. Book your appointment for an individualized assessment with our team of experts and regain your health.