King-Devick Testin associationwith Mayo Clinic

Quickly recognize impaired eye movements on the sidelines with King-Devick Test in association with Mayo Clinic.

tablet with King-Devick Test in association with Mayo Clinic

What is the King-Devick Test?

The King-Devick Test is a two-minute rapid number naming assessment in which an in individual quickly reads aloud single digit numbers and evaluates impairments of eye movements, attention and language function (Concussion, The King-Devick test of rapid number naming for concussion detection: meta-analysis and systematic review of the literature, 2016).*

KDt app

Eye Movements and Concussion Testing

Peer-reviewed research has shown that adding a vision-based performance measure to cognitive and balance testing enhances the detection capabilities of current sideline concussion assessment (Journal of Neuro-Ophthalmology, Adding Vision to Concussion Testing: A Prospective Study of Sideline Testing in Youth and Collegiate Athletes 2015).* The K-D Test is a recommended component of the Mayo Clinic Sideline Concussion Protocol.

High Sensitivity & Specificity

A recent meta-analysis found King-Devick Test to be both sensitive (86%) and specific (90%) for the detection of concussion. Any worsening of King-Devick Test from baseline indicated a five-times greater likelihood of concussion (Concussion, The King-Devick test of rapid number naming for concussion detection: meta-analysis and systematic review of the literature, 2016).*

*King-Devick Test has FDA pre-amendment certification for the assessment of saccadic eye movements. K-D Balance is FDA 510(k) cleared as a balance assessment tool. Some off-label uses of devices described in the peer-reviewed scientific research have not been cleared by FDA.

Questions?

We have experts available to answer your questions

Bring King-Devick Test in association with Mayo Clinic to your school, club, team or home today!
Number of Subjects: Annual Cost:
1-99 $20 (USD)/subject
100-199 $15 (USD)/subject
200+ $10 (USD)/subject

(Min. order 3 subjects)

$20.00

Qty.

KDt app

Program Features

  • Secure, protected cloud-based system
  • Compatible with 9.7” iPads, 10.1” Android tablets (minimum requirements), or computer
  • Unlimited testing per subject
  • Includes baseline testing, sideline assessment and monitoring
  • Use iPads or Android tablets when Wi-Fi is not available
  • Email reports to physicians or parents

Ahead
of the Game

Watch how King-Devick Test in association with Mayo Clinic is used by University of Miami as part of a comprehensive concussion protocol.

Evidence-Based Solutions

Featured Articles

The King-Devick test of rapid number naming for concussion detection: meta-analysis and systematic review of the literature

The King-Devick test was useful in management of concussion in amateur rugby union and rugby league in New Zealand

Assessment of the King-Devick (K-D) test for screening acute mTBI/concussion in warfighters

Parents Take-On Concussion: Advances in Sideline Research and Culture in Youth Sports

Rapid number naming in chronic concussion: eye movements in the King–Devick Test

Adding Vision to Concussion Testing: A Prospective Study of Sideline Testing in Youth and Collegiate Athletes

Comparison and Utility of King-Devick and ImPACT® Composite Scores in Adolescent Concussion Patients

Concussion in Ice Hockey: Current Gaps and Future Directions in an Objective Diagnosis

Visual Screening Test for Rapid Sideline Determination of Concussive and Sub-concussive Events

The King-Devick test (KDT) and visual contrast sensitivity test (VCS) in migraine: the effect of migraine attack on rapid eye movements and visual sensitivity

Capturing saccades in multiple sclerosis with a digitized test of rapid number naming

The King-Devick (K-D) Test of Rapid Eye Movements: A Bedside Correlate of Disability and Quality of Life in MS

Slower saccadic reading in Parkinson's disease

Slowing of Number Naming Speed by King-Devick Test in Parkinson's Disease

Early Detection of Hypoxia-Induced Cognitive Impairment Using the King-Devick Test

Residency Training: The King-Devick Test and sleep deprivation: Study in pre- and post-call neurology residents

Screening Utility of the King-Devick Test in Mild Cognitive Impairment and Alzheimer Disease Dementia

Longitudinal Performance on the King-Devick Test in Patients with REM Sleep Behavior Disorder +/- Mild Cognitive Impairment

Our Clients Include...

Concussion Facts

Concussion Symptoms may not be apparent for hours or days

Studies Show

85% of concussions may go undiagnosed

The majority of concussions occur without loss of consciousness

How K-D Test Works

At the beginning of the season, establish a K-D Baseline on your iPad or Android tablet. Use the King-Devick Test in association with Mayo Clinic App to assess your athlete right from the sidelines or at home. According to peer-reviewed studies, a worse sideline test indicates worsening saccadic eye movement function, which can be a common symptom of concussion (Concussion, The King-Devick test of rapid number naming for concussion detection: meta-analysis and systematic review of the literature, 2016).*

K-D Test can
be administered by:

  • Coaches
  • Parents
  • Athletic Trainers

Step 1

Icon

ESTABLISH A K-D BASELINE
Open the K-D Test App and follow the instructions to establish a K-D Baseline.

Step 2

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CONDUCT SIDELINE TEST
As part of your sideline screening protocol, open the K-D Test App to conduct a sideline assessment.

Step 3

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TAKE ACTION
The K-D Test App will compare the sideline results to the K-D Baseline and report any worsening in saccadic function, which can be a common symptom of concussion.*
Specifications iPad Android* Laptop/Computer*
Screen Size 9.7”+ 10.1”+ 13”+
Aspect Ratio 4:3 or 4.3:3 4:3 N/A
Resolution 1024 x 768+ 1280x800
1920x1200
2560x1600
1024x768+
Operating System iOS 9+** Android 4.4(KitKat)+ N/A
Compatible Browsers N/A N/A Chrome, Firefox, Edge, Safari
App Location Apple App Store Google Play App Store KDt Website
Notes **Automatic Speech Recognition (ASR) is not available prior to iOS 11
*Android devices are on a “per model” compatibility due to the large variance in manufacturing and advertising from different brands.

King-Devick Test in association
with Mayo Clinic iPad App Tutorial Video

King-Devick Test in association
with Mayo Clinic Android App Tutorial Video

King-Devick Test in association
with Mayo Clinic Online System Tutorial Video

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