Navigation Links
Study Finds Visual Evoked Potential Identifies Concussion History
Date:8/24/2017

A new objective visual evoked potential (VEP) marker was discovered in a high percentage of patients suffering concussion symptoms in a recent study published in Optometry and Vision Science [1]. The study authors developed a statistical algorithm from 79 patients predicting concussion history with 92 percent accuracy using the Diopsys® NOVA™ ERG and VEP Vision Testing System (Pine Brook, NJ). These findings represent an important tool for both concussion diagnosis, and the potential for new insights and treatment options.

Diagnosing vision problems caused by concussions can be difficult because visual symptoms can take time to manifest after the initial traumatic brain injury (TBI), and routine ophthalmic exams can look normal in patients with mild TBI [2]. The availability of an objective test to reliably evaluate visual dysfunction in these patients is significant.

The recent VEP study was conducted on two groups of patients: those suffering from convergence insufficiency (CI), and those with CI and a history of concussion. CI is an eye-teaming dysfunction affecting near vision, and has been found to be present in a great majority of patients suffering the effects of concussion. “Because the treatment for a patient with a past concussion would be different than that for a patient with CI alone, identifying the concussion history is important,” said study author Dr. Paul J. Lederer.

Lederer and his team of researchers analyzed the electrical responses recorded from the participants’ visual cortex during presentation of carefully designed visual stimuli, and found a specific combination of latency delay and reduced amplitude in the VEP results of patients in the concussion group. This VEP marker had a 92 percent sensitivity and 80 percent specificity for the diagnosis of concussion history.

The ability of the VEP test results to help diagnose the cause of CI symptoms from concussions opens the door to better, more appropriate treatment methods for these patients, and therefore better outcomes.

About Diopsys Inc.
Diopsys, Inc. (http://diopsys.com/) is the world leader in modern visual electrophysiology for the eye care practice. The company’s unique, patented technology provides ophthalmologists and optometrists with objective, functional information about the health of the vision system to aid in the early detection of vision disorders, and post-treatment tracking for enhanced patient management.

[1] Poltavski D, Lederer P, Cox LK. Visually Evoked Potential Markers of Concussion History in Patients with Convergence Insufficiency. Optom Vis Sci. 2017 Jul;94(7):742-750.

[2] Richman, Elaine. Traumatic Brain Injury and Visual Disorders: What Every Ophthalmologist Should Know. AOA Clinical Update. EyeNet Magazine. March 2014.

Read the full story at http://www.prweb.com/releases/Concussion-TBI-VEP/Diopsys-Electrophysiology/prweb14627709.htm.


'/>"/>
Source: PRWeb
Copyright©2017 Vocus, Inc.
All rights reserved


Related biology technology :

1. Cynvenio and Saint Luke’s Cancer Institute Launch Pilot Study to Evaluate the Potential for Early Detection of Recurrent Breast Cancer Following Therapy
2. New Study May Lead to Speedy Recovery From Hip Fractures
3. uBiome and Jackson Laboratory for Genomic Medicine to Study Pathogen Transmission in Geriatric Communities
4. New IntelLiDrives XYZ Robot helps researchers to study plant development
5. MMJ Technologies Rolls Out Medical Marijuana Patient Technology In Study
6. Bioquark Inc. and Lakmus LLC Announce Research Collaboration to Study Novel Biopharmaceuticals for Healthy Longevity Enhancement
7. Study Pinpoints Best Stage of Stem Cell Differentiation for Use in Treating Parkinson’s Disease
8. Study of In-Situ Treatment Using Powder Activated Carbon Demonstrates Minimal Short- and Long-Term Effects on Benthic Communities
9. ACEA Biosciences Announces Successful Completion of Phase I Clinical Study of Novel Autoimmune Disease Drug
10. Clinical Validation Study Confirms PromarkerD Can Predict Diabetic Kidney Disease Better than any Current Measure
11. MMJ International Holdings Enters Cannabis Study Agreement with BioInformatics and Genomics Center (BIG) at the University of Buffalo, New York
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/11/2017)... ... 11, 2017 , ... The CRISPR-Cas9 system has ... and avoiding the use of exogenous expression plasmids. The simplicity of programming this ... gain-of-function studies. , This complement to loss-of-function studies, such as with RNAi ...
(Date:10/11/2017)... Netherlands and LAGUNA HILLS, Calif. ... Institute of Cancer Research, London (ICR) ... MMprofiler™ with SKY92, SkylineDx,s prognostic tool to risk-stratify patients with ... known as MUK nine . The University of ... which is partly funded by Myeloma UK, and ICR will ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... conjugate (ADC) therapeutics, today confirmed licensing rights that give it exclusive global ... technology developed in collaboration with Children’s Hospital Los Angeles (CHLA). Additionally, ...
(Date:10/10/2017)... ... October 10, 2017 , ... USDM ... firm for the life sciences and healthcare industries, announces a presentation by Subbu ... , The presentation, “Automating GxP Validation for Agile Cloud Platforms,” will present a ...
Breaking Biology Technology:
(Date:4/5/2017)... -- Today HYPR Corp. , leading innovator in ... the HYPR platform is officially FIDO® Certified . ... that empowers biometric authentication across Fortune 500 enterprises and ... 15 million users across the financial services industry, however ... suites and physical access represent a growing portion of ...
(Date:4/4/2017)... NEW YORK , April 4, 2017   ... solutions, today announced that the United States Patent and ... The patent broadly covers the linking of an iris ... the same transaction) and represents the company,s 45 th ... our latest patent is very timely given the multi-modal ...
(Date:3/30/2017)... ANGELES , March 30, 2017  On April ... Hack the Genome hackathon at Microsoft,s ... exciting two-day competition will focus on developing health and ... Hack the Genome is the ... been tremendous. The world,s largest companies in the genomics, ...
Breaking Biology News(10 mins):