Featured Research

from universities, journals, and other organizations

Hopkins Testing New Uses For Improving Sight With Laser

Date:
July 7, 1997
Source:
Johns Hopkins Medical Institutions
Summary:
Johns Hopkins researchers are testing a new laser operation that could do for farsighted eyeglass wearers what surgery has long offered the nearsighted: clear vision without glasses or contact lenses.

Johns Hopkins researchers are testing a new laser operation that could do for farsighted eyeglass wearers what surgery has long offered the nearsighted: clear vision without glasses or contact lenses.

"Excimer laser surgery to gently sculpt the cornea--the clear `front window' of the eye that focuses incoming light, has the potential of opening laser treatment to millions of individuals," says Nada S. Jabbur, M.D., assistant professor of ophthalmology. About 6 percent of Americans are farsighted, and the condition usually affects people in their 40s, she says.

The procedure uses the first and only laser system to receive pre-market approval for the treatment of both nearsightedness and farsightedness with astigmatism. A person with astigmatism has wavy, distorted vision. The Hopkins investigators are using the system, called VISX Star Excimer Laser System, to reshape the corneas of volunteers.

"Using the laser, we treat the outer edges of the cornea to make the central area steeper," says Jabbur, the lead investigator for Wilmer Eye Institute. "This allows the cornea to focus light properly onto the retina, improving the person's sight without glasses."

"We are encouraged by the excellent results at Wilmer of the laser treatment to correct farsightedness, thus far," says Terrence P. O'Brien, M.D., director of refractive eye surgery. "The condition of farsightedness can be a real handicap, and the level of patient satisfaction after treatment has been very high."

Earlier studies done with the system showed excellent results for the farsighted, according to Jabbur. In one, in 1996, at the University of Ottawa Eye Institute, 96 percent attained 20/40 vision or better--vision good enough to pass a driver's test in most states without eyeglasses or contact lenses.

Candidates for clinical trials must be in good health, wear glasses or contact lenses and must not have had any form of eye surgery. In addition, patients should be willing to follow-up with periodic visits to Wilmer. To find out more about how to participate in these trials, potential volunteers can contact Mary Ann Millar, Wilmer Eye Institute, at (410)-614-2020.

The study is being funded by VISX Incorporated.

###

---------------------------------------------------------------

Johns Hopkins Medical Institutions' news releases are available on a PRE-EMBARGOED basis on EurekAlert at http://www.eurekalert.org and from the Office of Communications and Public Affairs' direct e-mail news release service. To enroll, call 410-955-4255 or send e-mail to bpalevic@welchlink.welch.jhu.edu or 76520.560@compuserve.com.

On a POST-EMBARGOED basis find them at http://hopkins.med.jhu.edu, http://infonet.welch.jhu.edu/news/news_releases, Newswise at http://www.ari.net/newswise or on CompuServe in the SciNews-MedNews library of the Journalism Forum under file extension ".jhm", Quadnet at http://www.quad-net.com or ScienceDaily at http://www.sciencedaily.com.


Story Source:

The above story is based on materials provided by Johns Hopkins Medical Institutions. Note: Materials may be edited for content and length.


Cite This Page:

Johns Hopkins Medical Institutions. "Hopkins Testing New Uses For Improving Sight With Laser." ScienceDaily. ScienceDaily, 7 July 1997. <www.sciencedaily.com/releases/1997/07/970707211957.htm>.
Johns Hopkins Medical Institutions. (1997, July 7). Hopkins Testing New Uses For Improving Sight With Laser. ScienceDaily. Retrieved July 22, 2014 from www.sciencedaily.com/releases/1997/07/970707211957.htm
Johns Hopkins Medical Institutions. "Hopkins Testing New Uses For Improving Sight With Laser." ScienceDaily. www.sciencedaily.com/releases/1997/07/970707211957.htm (accessed July 22, 2014).

Share This




More Health & Medicine News

Tuesday, July 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Courts Conflicted Over Healthcare Law

Courts Conflicted Over Healthcare Law

AP (July 22, 2014) Two federal appeals courts issued conflicting rulings Tuesday on the legality of the federally-run healthcare exchange that operates in 36 states. (July 22) Video provided by AP
Powered by NewsLook.com
Why Do People Believe We Only Use 10 Percent Of Our Brains?

Why Do People Believe We Only Use 10 Percent Of Our Brains?

Newsy (July 22, 2014) The new sci-fi thriller "Lucy" is making people question whether we really use all our brainpower. But, as scientists have insisted for years, we do. Video provided by Newsy
Powered by NewsLook.com
Scientists Find New Way To Make Human Platelets

Scientists Find New Way To Make Human Platelets

Newsy (July 22, 2014) Boston scientists have discovered a new way to create fully functioning human platelets using a bioreactor and human stem cells. Video provided by Newsy
Powered by NewsLook.com
Gilead's $1000-a-Pill Drug Could Cure Hep C in HIV-Positive People

Gilead's $1000-a-Pill Drug Could Cure Hep C in HIV-Positive People

TheStreet (July 21, 2014) New research shows Gilead Science's drug Sovaldi helps in curing hepatitis C in those who suffer from HIV. In a medical study, the combination of Gilead's Hep C drug with anti-viral drug Ribavirin cured 76% of HIV-positive patients suffering from the most common hepatitis C strain. Hepatitis C and related complications have been a top cause of death in HIV-positive patients. Typical medication used to treat the disease, including interferon proteins, tended to react badly with HIV drugs. However, Sovaldi's %1,000-a-pill price tag could limit the number of patients able to access the treatment. TheStreet's Keris Lahiff reports from New York. Video provided by TheStreet
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