Epub Apr Sideline Concussion Assessment: The King-Devick Test in Canadian Professional Football. Naidu D(1), Borza C(2), Kobitowich T(2), Mrazik . Scand J Med Sci Sports. Dec;28(12) doi: /sms Epub Sep King-Devick test normative reference values and internal. Concussions. The King-Devick Test: the Science & Implementation CLICK HERE for Video: King-Devick Test on the Today Show . Epub Aug
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;() Epub Aug The King-Devick test and sports- related concussion: study of a rapid visual screening tool in a collegiate cohort. King-Devick Test in association with o Clinic . App (PDF); King-Devick in association with o Clinic Sideline Concussion Screening - Android App (PDF ). Quickly recognize impaired eye movements on the sidelines with King-Devick Test in association with o Clinic. Eye Movements and Concussion Testing. *King-Devick Test has FDA pre-amendment certification for the assessment of saccadic eye movements.
Abstract Background Concussion diagnosis is typically made through clinical examination and supported by performance on clinical assessment tools. Performance on commonly implemented and emerging assessment tools is known to vary between administrations, in the absence of concussion. Objective To evaluate the test-retest reliability of commonly implemented and emerging concussion assessment tools across a large nationally representative sample of student-athletes. Clinical interpretation guidelines were also generated using confidence intervals to account for non-normally distributed data. Results Reliability for the self-reported concussion symptoms, motor control, and brief and extended neurocognitive assessments from year 1 to 2 ranged from 0. The reliability for these same measures ranged from 0. Conclusions This investigation noted less than optimal reliability for most common and emerging concussion assessment tools.
Epub Dec The King-Devick test of rapid number naming for concussion detection: meta-analysis and systematic review of the literature. Concussion 15 1 , J Neuroophthalmol. A variation on the use of binasal occlusion glasses - a case study.
Journal of Behavioural Optometry 9 2 : , Citation Gallop S. Int J Sports Phys Ther. The development of the Dizziness Handicap Inventory. Arch Otolaryngol Head Neck Surg.
J Head Trauma Rehabil. What is the physiological time to recovery after concussion?
A systematic review. Br J Sports Med. Epub Apr Associations among self-reported balance problems, post-concussion symptoms and performance-based tests: a longitudinal follow-up study.
Disabil Rehabil. Epub Dec 9. Am J Sports Med.
Epub Jun Intra-individual variability in recovery from paediatric acquired brain injury: relationship to outcomes at 1 year. Results showed that the severity of disconjugacy was correlated with the severity of concussive symptoms in all trauma patients.
Additionally, trauma patients who had hit their heads and had CT scans that showed new brain damage or had normal CT scans showed significantly greater oculomotor disruption than the control subjects. It would potentially enable informed decision making regarding return to baseline activity or sport play. In conjunction with devices such as accelerometers and other helmet sensors, eye tracking could be used to identify which impacts render the most disruptive blows and, thus, should be eliminated by ruling.
Spatial calibration not only requires consistent anatomic function and relative neuro-integrity, but also may mask minor deficits. Concussion may be the first of several neurologic disorders for which eye tracking will be the preferred diagnostic. It is designed as a remove-from-play test that evaluates athletes by their rapid number naming and eye movement performances. Steve Devick Devick told PCON that the test has proved successful in identifying concussions in various types of athletes and is not affected by exhaustion.
More than 40 peer-reviewed articles have been published in neurology journals relative to the effectiveness of King-Devick test as a quick and accurate sideline screening tool for concussions, he said. A study recently published in the Journal of Neuro-Ophthalmology found success with the King-Devick test.
The study included 89 collegiate athletes and youth athletes.
The participants ranged in age from 5 to 23 years old. As detailed in the study, all athletes underwent preseason baseline testing. During the season, if a concussion was suspected, athletes were tested on the sidelines, and nonconcussed athletes were also tested under the same conditions to serve as control participants.
The King-Devick test being performed on an iPad, the most commonly used format, Devick said. Image: Devick S Results showed that the King-Devick test was the most effective in identifying concussed athletes. Among the 12 athletes who sustained a concussion during the study, King-Devick scores worsened by an average of 5. Among nonconcussed controls, King-Devick scores improved by an average of 6.
Studies have shown that patients with impaired saccades post-concussion have both cortical and subcortical deficits. These deficits correlate with worse scores for quality of life assessments.
Saccadic eye movements require relay of information throughout the brain, including frontal eye fields, supplementary eye fields, dorsolateral prefrontal cortex, intraparietal sulcus and deeper structures of the brainstem. Eye movement testing enables the analysis of a number of circuits throughout the brain including visual-spatial integration, motor planning, attention, motivation and spatial organization. The wide distribution of neuronal networks required for saccades thus makes a vision-based sideline screening test particularly effective.
Peters, OD, along with a colleague, published a vision concussion protocol this spring in Optometry and Vision Performance.
The tests will identify whether a patient has a visual concussion, but a patient with a concussion and without visual symptoms can pass the tests. Peters and colleagues conducted a retrospective study to identify treatment trends. Specifically, the researchers assessed how many of their cases had a visual component, any changes in refractive state, if there was a resolution with new glasses, which patients needed vision therapy and the amount of time patients needed to return to play. We started this for athletes, but it actually benefits everyone.
Of those patients, 37 experienced symptom resolution with a new glasses prescription, while 73 needed vision therapy.