Navigation Links
UT Southwestern ophthalmologist helps develop device for monitoring degenerative eye disease

DALLAS July 26, 2011 An ophthalmologist at UT Southwestern Medical Center has helped create a convenient device that lets patients who have a degenerative eye disease better track vision changes.

With the hand-held digital device, called myVisionTrack, patients can now perform an accurate self-test in less than 90 seconds, said Dr. Yu-Guang He, associate professor of ophthalmology at UT Southwestern.

"Many patients do not have timely eye exams and end up suffering preventable vision loss," he said. "Careful self-monitoring is critical because treatment for age-related macular degeneration and diabetic retinopathy is most effective when given at precise stages in the disease's progression."

Supplied as an app on an iPhone or iPod touch, the prototype device displays three circles on a screen, one of which is markedly different from the others. Patients cover one eye, then touch what they perceive to be the odd-shaped circle on the screen. With each click, the differentiation becomes more subtle. The test is then repeated with the other eye. Results are stored in the device so patients do not have to memorize scores. If a significant vision change is detected, patients are instructed to see their doctor.

Degenerative eye diseases affect more than 13 million people in the U.S. Experts estimate that as the population ages up to a fourth of Americans will be affected by 2020.

Patients diagnosed with a degenerative eye disease previously have used an eye chart developed in the 1940s to track distortion in their vision. Known as an Amsler Grid, the chart looks like graph paper with a black dot in the center. When they focus on the dot, patients begin to see blurred, wavy or missing lines on the grid.

Many patients using the grid, however, failed to notice subtle vision changes. By contrast, myVisionTrack's "shape discrimination" tests are twice as sensitive as the paper eye chart in detecting small changes in vision, Dr. He said.

The myVisionTrack device was produced by Vital Art and Science Inc., a Richardson, Texas-based biotech firm that recently received approval for up to $1 million from the Texas Emerging Technology Fund to develop the product.

Researchers at UT Southwestern and the Retina Foundation of the Southwest tested the prototype device in an eight-month clinical study funded by the National Institutes of Health's National Eye Institute. Forty diabetic patients diagnosed with retinopathy used the monitoring device at home each week. Their test results showed a high correlation with an ophthalmologist's reading of their retinal images, taken at the beginning, midpoint and end of the study.


Contact: Robin Russell
UT Southwestern Medical Center

Related medicine news :

1. UT Southwestern scientists discover new pathway to potential therapies for advanced prostate cancer
2. UT Southwestern pediatric urologist develops procedure to eliminate scarring in kidney surgeries
3. Drug shows improved kidney function for type 2 diabetics, UT Southwestern researchers report
4. UT Southwestern researchers uncover why ketamine produces a fast antidepressant response
5. UT Southwestern surgeons examine hypospadias repair efficacy for patients with differing anatomies
6. UT Southwestern research uncovers genetic link between emphysema, lung cancer
7. UT Southwestern research teams anti-malarial work wins international Project of the Year award
8. Drug can reverse overgrown hearts to help prevent heart failure, UT Southwestern researchers find
9. UT Southwesterns Luis Parada elected to National Academy of Sciences
10. Antidepressants may not improve all symptoms of depression, UT Southwestern researchers find
11. Limiting carbs, not calories, reduces liver fat faster, UT Southwestern researchers find
Post Your Comments:
(Date:6/25/2016)... ... ... Austin residents seeking Mohs surgery services, can now turn to Dr. Jessica Scruggs ... for medical and surgical dermatology. , Dr. Dorsey brings specialization to include Mohs surgery, ... Micrographic Surgery completed by Dr. Dorsey was under the direction of Glenn Goldstein, MD, ...
(Date:6/25/2016)... ... June 25, 2016 , ... As a lifelong Southern ... Laude and his M.D from the David Geffen School of Medicine at UCLA. He ... Los Angeles to complete his fellowship in hematology/oncology at the UCLA-Olive View-Cedars Sinai program ...
(Date:6/24/2016)... ... June 24, 2016 , ... A recent article ... people are unfamiliar with. The article goes on to state that individuals are now ... of these less common operations such as calf and cheek reduction. The Los Angeles ...
(Date:6/24/2016)... ... June 24, 2016 , ... The ... in Dallas that it will receive two significant new grants to support its ... PHA marked its 25th anniversary by recognizing patients, medical professionals and scientists for ...
(Date:6/24/2016)... Rhinebeck, NY (PRWEB) , ... June 24, 2016 , ... Topical BioMedics, Inc, makers of ... of companies that call for a minimum wage raise to $12 an hour by 2020 ... wage. This will restore the lost value of the minimum wage, assure the wage floor ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... Calif. , June 24, 2016  American Respiratory Labs (ARL), ... is now able to perform sophisticated lung assessments in patients, homes, ... , Inc. Patients are no longer limited to ... EasyOne PRO ® , ARL patients like Jeanne R. of ... in the comfort of her own home. ...
(Date:6/24/2016)... 2016 According to a new ... Pen Needles, Safety Pen Needles), Needle Length (4mm, 5mm, ... Mode of Purchase (Retail, Non-Retail) - Trends & Global ... the market for the forecast period of 2016 to ... Billion by 2021 from USD 1.65 Billion in 2016, ...
(Date:6/24/2016)... NAMUR , Belgium , ...  (NYSE MKT: VNRX), today announced the appointment of ... Board of Directors as a Non-Executive Director, effective ... the Company,s Audit, Compensation and Nominations and Governance ... Board, Dr. Futcher will provide independent expertise and ...
Breaking Medicine Technology: