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HealthWatch: Bionic Eye Breakthrough-Helping the Blind to See

HealthWatch: Bionic Eye Breakthrough-Helping the Blind to See

DURHAM, N.C. (Ivanhoe Newswire) - Larry and Jerry Hester's love story spans more than four decades. But just after their ten year anniversary, a genetic disorder known as retinitis pigmentosa robbed Larry of his sight.

"If my sight was ever completely restored, the very first thing I would want to do would be to see my wife," Hester told Ivanhoe.

Hester's now closer to that reality: he's a candidate for a new bionic eye at Duke University Hospital.

"We can for the first time restore vision that was once considered to be permanently lost," Paul Hahn, MD, PhD, Retinal Ophthalmologist at Duke Eye Center, told Ivanhoe.

A miniature video camera picks up images that are sent to a micro-processor and wirelessly transmitted to a computer chip in the eye.

"It stimulates a part of the retina that's still healthy, and provides flashes of light which the patient can interpret as an image," Dr. Hahn said. "So they're not going to see the way you or I see."

Patients have to learn to see in a new way. Hester will see high contrast items of light and dark and identify movement. And maybe will even be able to see his grandchildren for the first time.

"Words really can't express how exciting it is and how thrilling it is," Hester said.

The bionic eye known as the Argus II is now being offered in 13 sites around the country and is currently only approved for those with retinitis pigmentosa. But in the future, it could help restore other forms of blindness.

The gift of sight comes with a price tag of about 145,000 dollars. But nationally, Medicare has approved reimbursement.

 

 

 

 

 

 

 

MEDICAL BREAKTHROUGHS

RESEARCH SUMMARY

TOPIC: BIONIC EYE BREAKTHROUGH-HELPING THE BLIND TO SEE

REPORT: MB #3745

BACKGROUND: Retinitis pigmentosa (RP) is an eye disease in which there is damage to the retina. The retina is the layer of tissue at the back of the inner eye. It converts light images to nerve signals, and then sends those signals back to the brain. This can cause decreased vision at night or in low light, loss of peripheral vision, and loss of central vision. Retinitis pigmentosa affects one in 4,000 people in the United States. Retinitis pigmentosa can run in families. The cells controlling night vision are most likely to be affected. However, in some cases, retinal cone cells are damaged the most. The main sign of the disease is the presence of dark deposits in the retina. (Source: http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0002024/)

SYMPTOMS: Symptoms usually start during young adulthood, although RP may be seen at any age and include night blindness and loss of peripheral vision. Symptoms may not necessarily mean you have the disease, but if you experience one or more, you should contact your eye doctor for a complete eye exam. (Source: http://www.kellogg.umich.edu/patientcare/conditions/pigmentosa.html)


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