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Videonystagmographs

Definition : Computerized video recorder systems designed to view, record, and analyze two-dimensional (i.e., horizontal and vertical) or three-dimensional (i.e., horizontal, vertical, torsional) eye movements, usually during a set of standardized eye movement tests. These instruments typically consist of goggles or light masks, including an infrared (IR) light source and an IR camera for each eye, as well as a dedicated or standard computer with appropriate software to process, record, analyze, and display the digital video signals obtained from the eye movements (including real-time observation of the actual eye movements) and/or reports related to the eye-movement tests. The human eye cannot detect IR light signals, permitting the performance of tests using invisible light without any additional disturbance. Videonystagmographs (VNG) may include projectors and/or video screens controlled by VNG software to display visual stimuli that may be followed by the patient during the tests. VNGs are mainly used to perform dedicated standard tests (e.g., caloric, positional, gaze, saccades, smooth pursuit, Hallpike, optokinetic) for detecting vestibular conditions (e.g., balance, vertigo, dizziness); they may be used also to detect the presence of drugs as well as multiple sclerosis and other disorders characterized by involuntary eye movement (nystagmus).

Entry Terms : "VNGs" , "Videooculographs" , "Nystagmographs"

UMDC code : 21989

   

1-8 of 8 Match(es).

GN Otometrics A/S

GN Otometrics A/S

GN Otometrics North America

Otometrics develops, manufactures and markets computer-based audiological, otoneurologic and vestibular instrumentation in more than 70 countries under the MADSEN, AURICAL, HORTMANN and ICS brand names.

IntelliNetx

AcuNetx, Inc. (AcuNetx) was formed in the late 80's. Originally known as Eye Dynamics, Inc., it underwent a name change in 2005, following the acquisition of a Colorado-based medical device company.

Interacoustics A/S

Interacoustics A/S

Interacoustics Pty Ltd

Interacoustics Pty Ltd

Interacoustics USA

At Interacoustics we design and manufacture equipment across the whole audiological spectrum. Our products range from small portable devices to full clinical instruments and can be found all over the world wherever hearing health care is practiced. This is one of our strengths, because it enables us to provide integrated solutions whatever your situation. And with more than 40 years experience, you can be sure we have the insight required to make solutions that work for you.

Micromedical Technologies Inc

Micromedical is the recognized leader in vestibular and balance testing instrumentation with 25 years of experience.

SensoMotoric Instruments Inc

SensoMotoric Instruments (SMI) is a world leader in dedicated computer vision applications, developing and marketing eye & gaze tracking systems, OEM and medical solutions for a wide range of applications.

1-8 of 8 Match(es).

 

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