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:5/26/2016)... ... 26, 2016 , ... There are many ways to cook a hot dog, ... that Americans prefer their dogs straight off the grill. Of the 90 percent of ... way to cook a hot dog, far outpacing other cooking methods such as steaming ...
(Date:5/26/2016)... ... May 26, 2016 , ... Cabot Corporation, Pfizer, and ... according to court documents and SEC filings. A jury has returned a ... American Optical Corporation, Case No. BC588866, Los Angeles County, California. The jury awarded ...
(Date:5/26/2016)... ... 2016 , ... Georgia State University College of Law is ... Answering to the increasing demand for curricular specializations, the Certificate in Intellectual Property ... land use law. ,  , “The demand for lawyers with specific knowledge in ...
(Date:5/26/2016)... , ... May 26, 2016 , ... On Memorial Day, ... women who lost their lives in military battle for the country. The nonprofit ... 2015 to provide more programs that empower independence for disabled military veterans, as well ...
(Date:5/26/2016)... ... 2016 , ... Cardiac arrhythmia is a common complication following ... survival, reports a team of UPMC researchers in the largest study of its ... Thoracic and Cardiovascular Surgery, provide critical information that will hopefully lead to better ...
Breaking Medicine News(10 mins):
(Date:5/24/2016)... --   , Study met ... cleansing and superiority in , Excellent ... of the ascending colon   , ... Norgine B.V. today announced new positive data from the phase III ... versus standard 2 litre PEG with ascorbate. The study met both ...
(Date:5/24/2016)... LAWRENCE, Mass. , May 24, 2016  NxStage ... medical technology company focused on advancing renal care, today ... Officer, plans to participate in the following schedule of ... will be made available at http://ir.nxstage.com/ . ... Jefferies Healthcare Conference NY, NY           Friday, ...
(Date:5/24/2016)... , May 24, 2016 ... the world , s first dual ... fistula intervention   OrbusNeich, a global company ... expanded its portfolio to include products to treat peripheral ... the company,s first entry devices for lower limb and ...
Breaking Medicine Technology: