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

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."


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

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