Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New ’implanted contacts’ designed to fix nearsightedness

28.02.2006


UT Southwestern Medical Center ophthalmologists will be the first in the area to insert a new type of implanted lens to fix nearsightedness.



"Think of it as a contact lens inside your eye," said Dr. Wayne Bowman, who is inserting the new implantable collamer lens, or ICL, today for the first time at UT Southwestern University Hospitals.

The ICL can replace or reduce the need for glasses by permanently placing the specially fitted artificial lens in front of the eye’s natural lens, rather than replacing the natural lens as other implanted lens do, said Dr. Bowman, professor of ophthalmology.


The lens, made of a special collamer material, corrects moderate to severe nearsightedness, known as myopia, by bending light rays to improve blurry distance vision without the need for glasses or contacts.

Dr. Bowman said the lens currently is approved only for nearsightedness, but it may eventually be available for farsightedness and astigmatism. It has been used for nearsightedness for several years in Europe and was approved by the Food and Drug Administration in December.

According to the FDA, a clinical study of 294 implanted patients showed that 95 percent — 279 patients — had 20/40 or better vision, which is considered the standard needed for an unrestricted driver’s license. And 59 percent — almost 175 patients — had 20/20 or better vision after three years.

Ideal candidates are typically under 40 years of age and don’t yet have presbyopia, which makes reading glasses necessary, and whose corrections are outside the parameters for routine laser procedures, said Dr. Steven Verity, associate professor of ophthalmology, who specializes in refractive corneal surgery.

Rather than reshaping the eye, as in laser surgery, or replacing the eye’s natural lens, as with intraocular lenses, the collamer lens is inserted with a smaller incision. The lens is like a fixed contact, but it can be removed if need be.

The procedure, Dr. Bowman said, normally takes about 10 to 15 minutes, and the patient sees the improvement soon after.

The Visian implantable lens is made by STAAR Surgical Co. in Monrovia, Calif.

Russell Rian | EurekAlert!
Further information:
http://www.utsouthwestern.edu

More articles from Health and Medicine:

nachricht Penn vet research identifies new target for taming Ebola
12.01.2017 | University of Pennsylvania

nachricht The strange double life of Dab2
10.01.2017 | University of Miami Miller School of Medicine

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

Im Focus: How to inflate a hardened concrete shell with a weight of 80 t

At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).

Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...

Im Focus: Bacterial Pac Man molecule snaps at sugar

Many pathogens use certain sugar compounds from their host to help conceal themselves against the immune system. Scientists at the University of Bonn have now, in cooperation with researchers at the University of York in the United Kingdom, analyzed the dynamics of a bacterial molecule that is involved in this process. They demonstrate that the protein grabs onto the sugar molecule with a Pac Man-like chewing motion and holds it until it can be used. Their results could help design therapeutics that could make the protein poorer at grabbing and holding and hence compromise the pathogen in the host. The study has now been published in “Biophysical Journal”.

The cells of the mouth, nose and intestinal mucosa produce large quantities of a chemical called sialic acid. Many bacteria possess a special transport system...

Im Focus: Newly proposed reference datasets improve weather satellite data quality

UMD, NOAA collaboration demonstrates suitability of in-orbit datasets for weather satellite calibration

"Traffic and weather, together on the hour!" blasts your local radio station, while your smartphone knows the weather halfway across the world. A network of...

Im Focus: Repairing defects in fiber-reinforced plastics more efficiently

Fiber-reinforced plastics (FRP) are frequently used in the aeronautic and automobile industry. However, the repair of workpieces made of these composite materials is often less profitable than exchanging the part. In order to increase the lifetime of FRP parts and to make them more eco-efficient, the Laser Zentrum Hannover e.V. (LZH) and the Apodius GmbH want to combine a new measuring device for fiber layer orientation with an innovative laser-based repair process.

Defects in FRP pieces may be production or operation-related. Whether or not repair is cost-effective depends on the geometry of the defective area, the tools...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

Nothing will happen without batteries making it happen!

05.01.2017 | Event News

 
Latest News

Multiregional brain on a chip

16.01.2017 | Power and Electrical Engineering

New technology enables 5-D imaging in live animals, humans

16.01.2017 | Information Technology

Researchers develop environmentally friendly soy air filter

16.01.2017 | Power and Electrical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>