Featured Research

from universities, journals, and other organizations

University Of Michigan Laser Performs High-Precision Corneal Surgery Not Possible With Current Technology

Date:
July 15, 1997
Source:
University Of Michigan
Summary:
University of Michigan researchers have developed and demonstrated a new, high-precision laser for eye surgery which can be used to perform surgical procedures within the transparent cornea of the eye---something not possible with current laser technology.

University of Michigan July 9, 1997

Related Articles


Contact: Sally Pobojewski Phone: (313) 647-1844 E-mail: pobo@umich.edu

University of Michigan laser performs high-precision corneal surgery not possible with current technology.

EDITORS: Black-and-white slide of the scanning electron microscope image shown on this release is available at http://www.umich.edu/~newsinfo/Photos/eyeball.gif

ANN ARBOR---University of Michigan researchers have developed and demonstrated a new, high-precision laser for eye surgery which can be used to perform surgical procedures within the transparent cornea of the eye---something not possible with current laser technology.

The U-M laser uses powerful light pulses lasting just a few hundred femtoseconds or quadrillionths of a second. According to Ron M. Kurtz, assistant professor of ophthalmology in the U-M Medical School, these ultrashort pulses require less energy to cut tissue and do not create large "shock waves" that can damage surrounding structures.

Kurtz is currently testing the laser for use in corneal refractive surgery for vision correction and in corneal transplantation. Future research will test the laser's effectiveness in the treatment of glaucoma and cataracts.

The new laser system was developed by a team of scientists from the U-M College of Engineering's Center for Ultrafast Optical Science and the U-M Medical School's W.K. Kellogg Eye Center.

Tibor Juhasz, an associate research scientist with joint appointments in the College of Engineering and the Medical School, presented the results of recent experiments with the U-M laser at the Advanced Opthalmic Laser Surgery Conference held June 25-28 in Interlaken, Switzerland. These studies compared the precision cuts made in human cadaver corneas with the U-M laser with cuts made by laser and mechanical surgical devices currently used by opthalmic surgeons.

"Cuts made by the U-M's femtosecond laser had extremely high surface quality with accuracy better than 10 microns," Juhasz said. "These results were markedly better than similar cuts made with mechanical devices, which are associated with significant risks and complications. Other lasers were unable to perform the procedure."

"Although the new laser will not be available for general patient use for at least three to four years, it could represent a major advance in the surgical treatment of several eye diseases and conditions by avoiding the risks and complications associated with less precise mechanical and laser techniques," Kurtz said.

An analysis of the optimal laser parameters for corneal surgery based on work by Kurtz and several U-M colleagues is being published in an upcoming issue of the Journal of Refractive Surgery. Animal tests are currently under way with plans for human testing in the near future.

A prototype of the new surgical laser system was designed and built by Juhasz and his colleagues in the Femtosecond Medical Research Laboratory at the U-M College of Engineering's Center for Ultrafast Optical Science (CUOS). Since it was established in 1990 with $14.3 million in funding from the National Science Foundation and the state of Michigan, CUOS scientists have developed ultrashort-pulsed laser technology for many applications in high-speed communications, manufacturing and biological imaging. CUOS lasers are based on a technique called chirped pulse amplification---developed by Gerard A. Mourou, U-M professor of electrical engineering and computer science and director of the research center.

The U-M has applied for several patents related to ultrafast lasers and is currently assisting in the establishment of a new company to commercialize the technology. A corporate partner will provide the delivery system technology and additional intellectual property for the new company, called InterLase, which will be established in Ann Arbor this summer.

Research leading to the development of the new laser was funded by the National Science Foundation, the U-M Office of the Vice President for Research, the U-M College of Engineering, the W.K. Kellogg Eye Center, the Research to Prevent Blindness Foundation and the Midwest Eye Bank and Transplantation Centers. # # # # #


Story Source:

The above story is based on materials provided by University Of Michigan. Note: Materials may be edited for content and length.


Cite This Page:

University Of Michigan. "University Of Michigan Laser Performs High-Precision Corneal Surgery Not Possible With Current Technology." ScienceDaily. ScienceDaily, 15 July 1997. <www.sciencedaily.com/releases/1997/07/970715053931.htm>.
University Of Michigan. (1997, July 15). University Of Michigan Laser Performs High-Precision Corneal Surgery Not Possible With Current Technology. ScienceDaily. Retrieved March 5, 2015 from www.sciencedaily.com/releases/1997/07/970715053931.htm
University Of Michigan. "University Of Michigan Laser Performs High-Precision Corneal Surgery Not Possible With Current Technology." ScienceDaily. www.sciencedaily.com/releases/1997/07/970715053931.htm (accessed March 5, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Thursday, March 5, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Bupa Eyes India Healthcare Opportunities

Bupa Eyes India Healthcare Opportunities

Reuters - Business Video Online (Mar. 5, 2015) — Bupa is hoping to expand in India&apos;s fast-growing health insurance market, once a rule change on foreign investment is implemented. The British private healthcare group&apos;s CEO tells Grace Pascoe why it&apos;s so keen on the new opportunity. Video provided by Reuters
Powered by NewsLook.com
Doctor in Your Pocket Is Getting Smarter

Doctor in Your Pocket Is Getting Smarter

Reuters - Business Video Online (Mar. 5, 2015) — Mobile apps are turning smartphones into a personal doctors, with users able to measure heart rate, blood pressure and even blood sugar. But will it change our behaviour? Ivor Bennett reports from the Mobile World Congress in Barcelona. Video provided by Reuters
Powered by NewsLook.com
AbbVie Inks $21B Deal To Buy Cancer Drugmaker Pharmacyclics

AbbVie Inks $21B Deal To Buy Cancer Drugmaker Pharmacyclics

Newsy (Mar. 5, 2015) — AbbVie announced Wednesday it will buy cancer drugmaker Pharmacyclics in a $21 billion deal. Video provided by Newsy
Powered by NewsLook.com
Adults Only Get The Flu Twice A Decade, Researchers Say

Adults Only Get The Flu Twice A Decade, Researchers Say

Newsy (Mar. 4, 2015) — Researchers found adults only get the flu about once every five years. Scientists analyzed how a person&apos;s immunity builds up over time as well. 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:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

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