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Saccadometry very precisely measures the following aspects of saccades that studies have shown to be very accurate when assessing concussion and mTBI.
The saccadometer computerized graph shows leftward saccades that are generated by the right brain hemisphere as red and the rightward saccades that are generated by the left brain as green. This can be very useful in determining what side of the brain has been most affected by the concussion.
- Latency: This is the time it takes for the eyes to react to a new stimulus or a new target appears in the visual field. It is produced by the Frontal Lobe and the normal reaction time should be less than 200ms. People who have had concussion or suffer from neurodegenerative disease and neurological dysfunction have longer or slower saccadic latencies, and are typically greater than 200ms. (TOP-RIGHT IMAGE in PRE/POST TREATMENT BELOW)
- Velocity: The speed of a saccade is highly related to the health of areas of the brain stem commonly affected by head injury and after concussion.(BOTTOM-LEFT IMAGE in PRE/POST TREATMENT BELOW)
- Accuracy/Position: The ability to make the eyes stop and land directly on the target they are refixating to or looking toward is essential to a person functioning in their environment accurately, especially athletes. If the saccade overshoots or undershoots the target it may indicate that the cerebellum (part of the brain that coordinates all body movements including the eyes) or the area that makes the environmental grid system may have been affected by the concussion. (TOP-LEFT IMAGE in PRE/POST TREATMENT BELOW)
Concussion patients with these accuracy issues can have serious issues with gait, balance, equilibrium, movement and may cause dizziness or nausea. - Phase: The phase plot is the actual flight of the eye. If the plot resembles a clean “arch” shape then the eyes are moving normally. If the plot looks like an “M” or “MM” then the eyes are NOT moving normally.
PRE-TREATMENT
2 weeks after multiple concussions (soccer player) post-concussion diagnostics
POST-TREATMENT
Same Patient after Functional Neurological Therapy
ACNC Concussion Baseline or Post-Concussion Testing includes:
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Saccadometry
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Bertec Balance Assessment
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SVI Hand-Eye Coordination Testing
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Structural/Sport Evaluation
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Report of Findings and Treatment Recommendations
- *Additional VNG Testing available before implementing treatment*
Please call the office to schedule your Baseline Concussion or Post-Concussion Testing and Report of Findings
(480) 756-2600
