Featured Research

from universities, journals, and other organizations

Researcher Placing Eye Implants In Cats To Help Humans See

Date:
January 10, 2007
Source:
University of Missouri-Columbia
Summary:
In "Star Trek: The Next Generation," Geordi La Forge is a blind character who can see through the assistance of special implants in his eyes. While the Star Trek character "lives" in the 24th century, people living in the 21st century may not have to wait that long for the illuminating technology.

Dr. Kristina Narfstrom, the Ruth M. Kraeuchi-Missouri Professor in Veterinary Ophthalmology, poses with one of her cats that she is helping through the use of eye implants. Inset: The microchip includes several thousand microphotodiodes that react to light and produce small electrical impulses in parts of the retina.
Credit: Image s courtesy of University of Missouri-Columbia

In "Star Trek: The Next Generation," Geordi La Forge is a blind character who can see through the assistance of special implants in his eyes. While the Star Trek character "lives" in the 24th century, people living in the 21st century may not have to wait that long for the illuminating technology.

Kristina Narfstrom, a University of Missouri-Columbia veterinary ophthalmologist, has been working with a microchip implant to help blind animals "see." According to Narfstrom, the preliminary results are promising.

"About one in 3,500 people worldwide is affected with a hereditary disease, retinitis pigmentosa, that causes the death of retinal cells and, eventually, blindness," Narfstrom said. "Our current study is aimed at determining safety issues in regard to the implants and to further develop surgical techniques. We also are examining the protection the implants might provide to the retinal cells that are dying due to disease progression with the hope that natural sight can be maintained much longer than would be possible in an untreated patient."

Narfstrom, the Ruth M. Kraeuchi-Missouri Professor in Veterinary Ophthalmology, is working primarily with Abyssinian and Persian cats that are affected with hereditary retinal blinding disease. The cat's eye is a good model to use for this type of research because it is very similar to a human eye in size and construction, so surgeons can use the same techniques and equipment. Cats also share many of the same eye diseases with humans. The Abyssinian cats that Narfstrom is working with typically start to lose their sight when they are around one or two years old and are completely blind by age four.

To date, Narfstrom has performed surgeries in severely visually impaired or blind cats. During the surgery, Narfstrom makes two small cuts into the sclera, the outer wall of the eyeball. After removing the vitreous, which is the gelatinous fluid inside the back part of the eyeball, Narfstrom creates a small blister in the retina and a small opening, large enough for the microchip, which is just two millimeters in diameter and 23 micrometers (one-millionth of a meter) thick. The chip includes several thousand microphotodiodes that react to light and produce small electrical impulses in parts of the retina.

"We are really excited about the potential uses for this technology and the potential to create improved vision in some of the millions of people affected worldwide with retinal blindness," Narfstrom said. "This technology also may be beneficial for pets that have similar diseases because this technology can benefit both animals and humans."

Narfstrom is working with Optobionics Corporation, the Naperville, Ill., based company that developed the device, and with Machelle Pardue, a researcher with Emory University and the Research Service at the VA Medical Center in Atlanta.


Story Source:

The above story is based on materials provided by University of Missouri-Columbia. Note: Materials may be edited for content and length.


Cite This Page:

University of Missouri-Columbia. "Researcher Placing Eye Implants In Cats To Help Humans See." ScienceDaily. ScienceDaily, 10 January 2007. <www.sciencedaily.com/releases/2007/01/070109171401.htm>.
University of Missouri-Columbia. (2007, January 10). Researcher Placing Eye Implants In Cats To Help Humans See. ScienceDaily. Retrieved September 1, 2014 from www.sciencedaily.com/releases/2007/01/070109171401.htm
University of Missouri-Columbia. "Researcher Placing Eye Implants In Cats To Help Humans See." ScienceDaily. www.sciencedaily.com/releases/2007/01/070109171401.htm (accessed September 1, 2014).

Share This




More Health & Medicine News

Monday, September 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

We've Got Mites Living In Our Faces And So Do You

We've Got Mites Living In Our Faces And So Do You

Newsy (Aug. 30, 2014) A new study suggests 100 percent of adult humans (those over 18 years of age) have Demodex mites living in their faces. Video provided by Newsy
Powered by NewsLook.com
Liberia Continues Fight Against Ebola

Liberia Continues Fight Against Ebola

AFP (Aug. 30, 2014) Authorities in Liberia try to stem the spread of the Ebola epidemic by raising awareness and setting up sanitation units for people to wash their hands. Duration: 00:41 Video provided by AFP
Powered by NewsLook.com
California Passes 'yes-Means-Yes' Campus Sexual Assault Bill

California Passes 'yes-Means-Yes' Campus Sexual Assault Bill

Reuters - US Online Video (Aug. 30, 2014) California lawmakers pass a bill requiring universities to adopt "affirmative consent" language in their definitions of consensual sex, part of a nationwide drive to curb sexual assault on campuses. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
New Drug Could Reduce Cardiovascular Deaths

New Drug Could Reduce Cardiovascular Deaths

Newsy (Aug. 30, 2014) The new drug from Novartis could reduce cardiovascular deaths by 20 percent compared to other similar drugs. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins