Navigation Links
Vision restoration therapy shown to improve brain activity in brain injured patients
Date:8/13/2007

Columbia University Medical Center researchers have demonstrated using functional magnetic resonance imaging (fMRI), that brain activity was increased in stroke and traumatic brain injury survivors who underwent Vision Restoration Therapy (VRT), a rehabilitative treatment that helps these patients recover lost vision. The data will be published online in the peer-reviewed journal Neurorehabilitation and Neural Repair on Aug. 14, 2007 at http://nnr.sagepub.com/pap.dtl.

Researchers, led by Randolph S. Marshall, M.D., M.S., associate professor of clinical neurology and acting director, Division of Stroke and Critical Care at Columbia University College of Physicians and Surgeons, examined the fMRIs of six patients aged 35-77 with vision loss on the same side of both eyes (called homonymous hemianopia) caused by stroke or traumatic brain injury. The therapy is based on visual stimulation, which the patient performs daily at home on a dedicated computer device. The fMRI data showed increased activity in visual processing areas of the brain as patients learned to detect stimuli in the borderzone between the seeing and non-seeing fields. This enhanced activity was identified one month after beginning treatment and suggests that the brain is responding accordingly.

This study is encouraging because the fMRI technique allowed us to see and compare the activity levels in specific regions of the brain before and during Vision Restoration Therapy. After examining the images, the increased activity levels demonstrate progress associated with the treatment, said Dr. Marshall. Based on these initial results, we will continue to investigate the relationship between the imaging findings and the degree to which vision is recovered.

The publication of Dr. Marshalls study in Neurorehabilitation and Neural Repair underscores the growing scientific evidence validating Vision Restoration Therapy. For hundreds of thousands of stroke and brain injury survivors with impaired vision, these data further show that VRT may help them regain lost sight and ultimately help them reclaim their independence, said Navroze Mehta, president and chief executive officer of NovaVision, Inc., the maker of the device used in this study.

NovaVision VRT is approved by the U. S. Food and Drug Administration to treat vision problems in people who have been left partially blind due to stroke or brain trauma. Customized treatment is created from a comprehensive diagnostics that map the seeing and non-seeing areas of vision. Patients perform the therapy daily at home for six to seven months, gradually improving their vision through the repeated detection of light stimuli directed at the border between the seeing and blind areas of the visual field.

Through further enhancements of this therapy, the hope is to help the approximately 1 to 2 million stroke and brain injury survivors in the United States who suffer from major visual field deficits, a number that increases by more than 90,000 each year.


'/>"/>
Contact: Elizabeth Streich
eas2125@columbia.edu
212-305-6535
Columbia University Medical Center
Source:Eurekalert

Related medicine news :

1. Role of fats and oils in vision care
2. Genes for Vision discovered
3. Watching television for long hours could lead to agressiveness
4. Body mass index guide needs revision
5. Putting cancer risk with a vision
6. Risk Factors for vision problems in Diabetes
7. Watching television linked to smoking
8. Vision loss could result due to MSG
9. Televisions ruling babys world!
10. Preventing Vision Loss
11. Preventing Vision Loss
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/25/2016)... ... June 25, 2016 , ... Conventional wisdom preaches the benefits of moderation, whether ... latter, setting the bar too high can result in disappointment, perhaps even self-loathing. However, ... their goal. , Research from PsychTests.com reveals that behind the tendency ...
(Date:6/24/2016)... ... ... June 19, 2016 is World Sickle Cell Observance Day. In an effort ... holistic treatments, Serenity Recovery Center of Marne, Michigan, has issued a pain ... Disease (SCD) is a disorder of the red blood cells, which can cause episodes ...
(Date:6/24/2016)... ... June 24, 2016 , ... Global law firm Greenberg Traurig, P.A. ... The attorneys chosen by their peers for this recognition are considered among the top ... Shareholders received special honors as members of this year’s Legal Elite Hall of Fame: ...
(Date:6/24/2016)... NY (PRWEB) , ... June 24, 2016 , ... Topical BioMedics, Inc, makers of Topricin ... companies that call for a minimum wage raise to $12 an hour by 2020 and ... This will restore the lost value of the minimum wage, assure the wage floor does ...
(Date:6/24/2016)... ... June 24, 2016 , ... ... to recognize Dr. Barry M. Weintraub as a prominent plastic surgeon and the ... in the world, and the most handsome men, look naturally attractive. Plastic surgery ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... , June 23, 2016 Any dentist who ... challenges of the current process. Many of them do not ... the technical difficulties and high laboratory costs involved. And those ... offer it at such a high cost that the majority ... Dr. Parsa Zadeh , founder of Dental ...
(Date:6/23/2016)... LOS ANGELES , June 23, 2016 /PRNewswire/ ... (NASDAQ: CAPR ), a biotechnology company ... first-in-class therapeutics, today announced that patient enrollment in ... progrEssion in Duchenne) has exceeded 50% of its ... its enrollment in the third quarter of 2016, ...
(Date:6/23/2016)... 23, 2016  Astellas today announced the establishment of Astellas Farma Colombia (AFC), a new affiliate with operations headquartered ... Latin America . ... ... ... ...
Breaking Medicine Technology: