Videonystagmography Examples
COMPUTERIZED DYNAMIC POSTUROGRAPHY (CDP)
Our bodies use our inner ears in conjunction with the senses of vision and somatosenses (sense of touch or vibration) in order to help us maintain our balance and orientation. We will evaluate each of these three systems as they work together and in isolation in order to identify any weaknesses.
What to expect: A harness will ensure your safety as you maintain your balance on a platform. This test typically lasts 15 minutes. Please be sure to notify the Audiologist of any knee, hip or back pain as well as any recent surgeries prior to testing.
VIDEONYSTAGMOGRAPHY (VNG)
Videonystagmography is a test battery that consists of multiple subtests. The purpose of this evaluation is to determine whether …show more content…
You will wear goggles that allow the Audiologist to record your eye movements throughout the duration of the evaluation. You will be asked to follow a target on the video monitor with your eyes in order to determine the timing and accuracy of eye movements. Additionally, your head and/or body will be moved into different positions in order to determine whether changes in head and/or body position are related to your symptoms.
ROTATIONAL CHAIR
Rotational chair tests are typically included in the VNG test battery in order to determine whether dizziness may be due to a disorder of the inner ear or brain. Rotary chair tests provide specific information regarding whether or not both vestibular systems are impaired at the same time and/or a level of compensation (recovery from an insult).
What to expect: While wearing goggles, you will be secured in a chair. The chair will rotate at various speeds. It is common to experience a sensation of movement as your whole body is rotated in the chair. …show more content…
Responses are evoked by a clicking sound presented through insert-style earphones; these clicks translate vibrations to the inner ear organs. You will be asked to flex the muscles around your eyes by looking up or your neck by turning your head during these tests. This test is not affected by medications or hearing loss due to inner ear damage.
Video Head Impulse Testing (vHIT)
The Video Head Impulse Test is an objective measure of the vestibular ocular reflex (VOR), which is an important component of a healthy vestibular system. The VOR allows for gaze stabilization during head movements and when impaired, can result in altered visual acuity when in motion. The vHIT measures the VOR in response to head movements representative of every-day head motion and can allow for ear-specific information to be obtained regarding vestibular function.
What to expect: The duration of the vHIT is about 15 minutes. You will wear lightweight video goggles and focus on a light in front of you. The examiner will hold your head and or chin with both hands and make a quick movement up, down, right or left. The video goggles will track any eye movement away from the target. A computer system will analyze this movement and provide information about VOR
Our bodies use our inner ears in conjunction with the senses of vision and somatosenses (sense of touch or vibration) in order to help us maintain our balance and orientation. We will evaluate each of these three systems as they work together and in isolation in order to identify any weaknesses.
What to expect: A harness will ensure your safety as you maintain your balance on a platform. This test typically lasts 15 minutes. Please be sure to notify the Audiologist of any knee, hip or back pain as well as any recent surgeries prior to testing.
VIDEONYSTAGMOGRAPHY (VNG)
Videonystagmography is a test battery that consists of multiple subtests. The purpose of this evaluation is to determine whether …show more content…
You will wear goggles that allow the Audiologist to record your eye movements throughout the duration of the evaluation. You will be asked to follow a target on the video monitor with your eyes in order to determine the timing and accuracy of eye movements. Additionally, your head and/or body will be moved into different positions in order to determine whether changes in head and/or body position are related to your symptoms.
ROTATIONAL CHAIR
Rotational chair tests are typically included in the VNG test battery in order to determine whether dizziness may be due to a disorder of the inner ear or brain. Rotary chair tests provide specific information regarding whether or not both vestibular systems are impaired at the same time and/or a level of compensation (recovery from an insult).
What to expect: While wearing goggles, you will be secured in a chair. The chair will rotate at various speeds. It is common to experience a sensation of movement as your whole body is rotated in the chair. …show more content…
Responses are evoked by a clicking sound presented through insert-style earphones; these clicks translate vibrations to the inner ear organs. You will be asked to flex the muscles around your eyes by looking up or your neck by turning your head during these tests. This test is not affected by medications or hearing loss due to inner ear damage.
Video Head Impulse Testing (vHIT)
The Video Head Impulse Test is an objective measure of the vestibular ocular reflex (VOR), which is an important component of a healthy vestibular system. The VOR allows for gaze stabilization during head movements and when impaired, can result in altered visual acuity when in motion. The vHIT measures the VOR in response to head movements representative of every-day head motion and can allow for ear-specific information to be obtained regarding vestibular function.
What to expect: The duration of the vHIT is about 15 minutes. You will wear lightweight video goggles and focus on a light in front of you. The examiner will hold your head and or chin with both hands and make a quick movement up, down, right or left. The video goggles will track any eye movement away from the target. A computer system will analyze this movement and provide information about VOR