HOME >> MEDICINE >> NEWS
Lens replacement material holds prospect of 'young' eyes for people over 40

NEW YORK, Sept. 8 A gel-like material being developed by scientists at the VA Hospital and Washington University in St. Louis could eventually mean the end of bifocals and contacts for millions of middle age and older people who suffer from presbyopia literally "old vision." The material, which could be used to replace old hardened lenses in patients, including those with cataracts, was described today at the 226th national meeting of the American Chemical Society, the world's largest scientific society.

While not a life-threatening condition, presbyopia affects nearly everyone over the age of about 40 or 45. As people age, according to one theory, the lenses in their eyes slowly harden making it more and more difficult to focus on nearby objects. The current solution for most people is reading glasses or contacts. Even people who undergo corrective laser surgery often still need glasses for reading and up close focusing.

"Our idea is that if we can remove the lens and put in a material that is soft, like a young healthy lens is at age 20, then they would have their accommodative ability restored," says researcher Madalene Fetsch. "They would be able to focus on near and far objects."

Fetsch, a graduate assistant in Washington University's department of biomedical engineering, is working under the mentorship of Dr. Nathan Ravi, M.D., Ph.D., principal investigator in the development of the replacement lens material. He is an associate professor of ophthalmology and professor of chemical engineering at the school. He also is director of ophthalmology for VA Heartland hospitals in the Midwest.

The material, which is currently in lab testing, is a hydrophobically modified hydrogel. Hydrogels are used in many extended wear contact lenses.

"The gels can be made soft to the touch and have viscoelastic properties similar to that of the natural human lens," according to Fetsch. "At the same time, our material so far looks l
'"/>


8-Sep-2003


Page: 1 2 3

Related medicine news :

1. Growing your own replacement teeth? Not science fiction!
2. Premature infants with lung disease may continue to need replacement substance to ease breathing
3. Biotech breakthrough in islet cell replacement for type 1 diabetes
4. MDCT is better than plain film in diagnosing hip replacement complications
5. Testosterone replacement improves muscle strength, function in HIV-infected women
6. Disc replacement in neck relieves pain, restores mobility
7. Minors able to buy nicotine replacement therapy products
8. Study finds no causal link between testosterone replacement, prostate cancer or cardiac disease
9. Study: growth hormone-deficient young adults need larger replacement doses than older adults
10. Study of hip replacement patients finds 80 percent eligible for minimally invasive surgery
11. Substantial increase in breast cancer risk from combination hormone replacement therapy

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:12/9/2019)... ... December 09, 2019 , ... WEDI , the nation’s leading nonprofit authority ... and a trusted advisor to the U.S. Department of Health and Human Services (HHS), ... election of Officers* as well as the re-election of ten previous board members to ...
(Date:12/9/2019)... ... December 09, 2019 , ... OCLI, a Spectrum Vision Partners (SVP) managed ... LASIK, Laser Cataract and Ophthalmology practice with experience spanning decades. As part of OCLI, ... their current practice location at 46 Eagle Rock Ave, East Hanover, NJ 07936. ...
(Date:12/8/2019)... ... 07, 2019 , ... Intelligent.com, a trusted resource for online ... of Science in Nursing (MSN) Degree Programs for 2020. The comprehensive research guide ... nation. Each program is evaluated based on curriculum quality, graduation rate, reputation, and ...
(Date:12/6/2019)... ... December 06, 2019 , ... C&A Industries ... in employee learning. The Omaha-based company has been named by Training magazine to ... employer-sponsored training and development programs worldwide. Rankings of the 125 leading companies will ...
(Date:12/6/2019)... , ... December 06, 2019 , ... ... used frequently, six students in Salt Lake Community College’s (SLCC) Emergency ... Mark Rodgers and Chelise Schaefer—were awarded the AT&T Public Safety Hero Scholarship to ...
Breaking Medicine News(10 mins):
(Date:12/8/2019)... ... December 08, 2019 , ... ... has announced the Top 50 Best Master's in Healthcare Administration Degree Programs for ... colleges and universities in the nation. Each program is evaluated based on curriculum ...
(Date:12/6/2019)... ... December 06, 2019 , ... Kindred Nutrition and ... services. While Kindred Nutrition and Wellness will continue to focus on Specialized ... to offer Individual and Family Therapy and Yoga. , Kindred Nutrition and Wellness ...
(Date:12/6/2019)... , ... December 06, 2019 , ... ... agreement with Forbidden Fruit Garden Supply LLC (a division of Horticultural Holdings LLC) ... clientele of professional growers. , FFGS is a team of disciplined and ...
Breaking Medicine Technology:
Cached News: