Navigation Links
University of Tennessee researchers develop comprehensive, accessible vision testing device
Date:1/19/2012

Eighty-five percent of children's learning is related to vision. Yet in the U.S., 80 percent of children have never had an eye exam or any vision screening before kindergarten, statistics say. When they do, the vision screenings they typically receive can detect only one or two conditions.

Three researchers at the University of Tennessee Space Institute in Tullahoma are working to change that with an invention that makes children eye exams inexpensive, comprehensive, and simple to administer.

"Eye exams can do so much more than just test vision," said Ying-Ling Ann Chen, device inventor and research assistant professor in physics. "They can detect learning disabilities, such as dyslexia, or neural disorders such as autism. By not testing our youth, we are potentially missing the window for effective treatment for a lot of conditions."

Called the Dynamic Ocular Evaluation System (DOES), the device was developed by Chen; Lei Shi, post-doctoral research associate in laser application; and Jim Lewis, professor emeritus in physics. The researchers hope the device will someday be used in pediatricians' offices across the country, and then expanded to other groups within population.

DOES is low-cost, high-quality and operator- and child-friendly. It takes about a minute to train someone to use it. The test is done as the child watches a three-minute cartoon or plays a computer game. Infrared light is used to analyze the binocular condition and the assessment is reported on-site within a minute. Neither eye dilation nor verbal response is required.

At the beginning of the cartoon, a three-second comprehensive test screens for binocular refractive risks, high-order aberration, scattering, ocular alignment and significant neural problems. The subsequent dynamic test searches for less significant signs of abnormal ocular alignment, neural responses, amblyopia, andin the futuremental statuses that include dyslexia, attention deficit hyperactivity disorder, post-traumatic stress disorder and autism. The images and results are digitally recorded and can be electronically transmitted to specialists for referral if necessary.

"Vision screening is important at an early age to detect several different causes of vision disorders," said Chen. "The few children that do get screened today aren't being screened adequately. For instance, many current screening methods do one eye at a time and studies show young eyes will accommodate significantly, and this causes inaccurate results."

According to Chen, children usually do not visit eye doctors unless their eyes hurt. They do not know if their vision is impaired because they do not know what they should be seeing. By having easy-to-administer comprehensive tests as part of the pediatrician's visit, a lot of vision and vision-related diseases could be avoided or treated more effectivelysuch as lazy eye and cross eyes, which impacts up to 5 percent of the U.S. population.

"During the critical period of childhood up until about age six, if one eye is not as good as the other, the brain will suppress the communication with that eye, and the vision could be lost permanently," said Chen. "This can cause a condition called amblyopia, or lazy eye, which can be prevented through detection."


'/>"/>
Contact: Whitney Heins
wheins@utk.edu
865-974-5460
University of Tennessee at Knoxville
Source:Eurekalert

Related medicine news :

1. University of Maryland study: Headphone-distracted pedestrians face death, serious injury
2. University of Granada researchers identify changes in tumor cells that lead to metastasis
3. University of Kentucky offers stroke stem cell trial
4. Treatment with light benefits Alzheimers patients, Wayne State University finds
5. University of Houston opens Sleep and Anxiety Center for Kids
6. Nap-deprived tots may be missing out on more than sleep, says University of Colorado-led study
7. Boston University researcher awarded 2 NIH grants
8. University of Maryland Department of surgery continues to lead through surgical innovation
9. University of Maryland finds restricting post-surgery blood transfusion is safe for some hip patients
10. Heart drug may be effective for managing certain cancers: Queens University study
11. Thomas Jefferson University receives Science Centers QED Award for pancreatic cancer research
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/24/2016)... IN (PRWEB) , ... May 24, 2016 , ... ... benefits advisory organization, is pleased to welcome new Partner Firm Austin & Co., ... personalized, consultative approach to insurance, employee benefits, HR consulting, benefits technology, and beyond. ...
(Date:5/24/2016)... ... ... New Brunswick, New Jersey: This year marks Children’s Specialized Hospital ’s 125th anniversary ... anniversary, the hospital has themed the milestone “Hats Off” and kicked off the yearlong ... Saturday, May 21, at Johnson Park in Piscataway, New Jersey. , “Hats ...
(Date:5/24/2016)... ... May 24, 2016 , ... ... disease or injury that focuses on repairing the musculoskeletal and neuromuscular systems of ... emphasis on functional restoration, NYDNRehab began providing treatments for physical therapy in New ...
(Date:5/24/2016)... ... May 24, 2016 , ... Growing in popularity, more and more people continue ... available and easily accessible. Whether someone chooses to cut gluten out of their life ... King Kullen Grocery stocks their shelves with many different gluten-free products all year round. ...
(Date:5/24/2016)... ... May 24, 2016 , ... Bio-Logic ... specialist for forty years and a trainer for Ageless Grace ( http://www.agelessgrace.com ) ... Talk Show on May 16, 2016. , Formerly a Northwestern University Literature Professor, ...
Breaking Medicine News(10 mins):
(Date:5/24/2016)... Zealand , May 24, 2016 ... informatics solutions for the healthcare sector, has been named the ... Zealand Hi-Tech Awards 2016. Dr Bruce Davey ... acknowledgement for our team.  It,s really good to be recognised ... healthcare internationally. Our products are used in 35 countries around ...
(Date:5/24/2016)... KONG , May 24, 2016 ... stent de doble terapia del mundo, introduce catéteres ... arteriovenosa. OrbusNeich, una compañía global especializada ... las vidas, ha expandido su cartera incluyendo productos ... balón JADE™ y Scoreflex™ PTA son los dispositivos ...
(Date:5/23/2016)... 23, 2016 According to ... Market by Product (Wheelchair, Scooters, Medical Beds, Bathroom ... Critical Care, Wound), Accessories (Lifting, Transfer) & by ... published by MarketsandMarkets, the patient handling equipment market ... 2021 at a CAGR of 10.5% during the ...
Breaking Medicine Technology: