Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Good News for Aging Eyes

29.06.2012
Debilitating eyesight problems are on the decline for older Americans

Today’s senior citizens are reporting fewer visual impairment problems than their counterparts from a generation ago, according to a new Northwestern Medicine study.

Improved techniques for cataract surgery and a reduction in the prevalence of macular degeneration may be the driving forces behind this change, the researchers said.

“From 1984 until 2010, the decrease in visual impairment in those 65 and older was highly statistically significant,” said Angelo P. Tanna, M.D., first author of the study. “There was little change in visual impairments in adults under the age of 65.”

The study, published in the journal Ophthalmology, shows that in 1984, 23 percent of elderly adults had difficulty reading or seeing newspaper print because of poor eyesight. By 2010, there was an age-adjusted 58 percent decrease in this kind of visual impairment, with only 9.7 percent of elderly reporting the problem.

There was also a substantial decline in eyesight problems that limited elderly Americans from taking part in daily activities, such as bathing, dressing or getting around inside or outside of the home, according to the study.

“The findings are exciting, because they suggest that currently used diagnostic and screening tools and therapeutic interventions for various ophthalmic diseases are helping to prolong the vision of elderly Americans,” Tanna said.

Tanna is the vice chairman of ophthalmology at Northwestern University Feinberg School of Medicine and an attending physician at Northwestern Memorial Hospital. Stephen Kaye, of the Institute for Health & Aging and Disability Statistics Center, University of California, is the second author of the study.

The study used self-reported data collected from 1984 to 2010 through two major population-based surveys, the National Health Interview Survey and the Survey of Income and Program Participation.

Survey questions revealed how vision problems can impact the daily activities and quality of life of Americans and helped researchers analyze trends in the prevalence of visual impairment of adults in the United States.

While this study didn’t identify any of the causes of the change in the prevalence of visual impairment, Tanna said there are three likely reasons for the decline:
Improved techniques and outcomes for cataract surgery
Less smoking, resulting in a drop in the prevalence of macular degeneration
Treatments for diabetic eye diseases are more readily available and improved, despite the fact that the prevalence of diabetes has increased

Future studies should identify which treatment strategies help prevent vision loss in older adults and then make those treatments available to as many people as possible, Tanna said.

This study was funded by a grant from Research to Prevent Blindness and by the National Institute on Disability and Rehabilitation Research, US Department of Education (grant H133B080002).

Erin White is the broadcast editor. Contact her at ewhite@northwestern.edu

Erin White | EurekAlert!
Further information:
http://www.northwestern.edu

More articles from Health and Medicine:

nachricht Laser activated gold pyramids could deliver drugs, DNA into cells without harm
24.03.2017 | Harvard John A. Paulson School of Engineering and Applied Sciences

nachricht What does congenital Zika syndrome look like?
24.03.2017 | University of California - San Diego

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: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

Im Focus: Researchers Imitate Molecular Crowding in Cells

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Argon is not the 'dope' for metallic hydrogen

24.03.2017 | Materials Sciences

Astronomers find unexpected, dust-obscured star formation in distant galaxy

24.03.2017 | Physics and Astronomy

Gravitational wave kicks monster black hole out of galactic core

24.03.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>