Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

British study may improve glaucoma assessment and treatment

25.10.2011
Results from a recent scientific study in the U.K. may change the way that healthcare professionals measure eye pressure and allow them to assess the risk of glaucoma with greater accuracy. Glaucoma is the second most common cause of irreversible loss of vision worldwide.

The study, published in the Investigative Ophthalmology & Visual Science journal (Intraocular Pressure and Corneal Biomechanics in an Adult British Population -- The EPIC-Norfolk Eye Study), reports the distribution and causes of eye pressure -- medically termed intraocular pressure (IOP).

According to the authors, researchers have long recognized that the clinical methods of assessing eye pressure have suffered from some inaccuracies, specifically as a consequence of the physical properties of the cornea. The EPIC-Norfolk study presents the first large-scale population-based measures of corneal biomechanics.

"Previously, a rather crude measure -- central corneal thickness -- was used as an index of corneal biomechanics," said author Paul J. Foster, MD, PhD, FRCS(Ed), of the University College London Institute of Ophthalmology, "We used a device which generates measures of corneal biomechanics in conjunction with IOP and attempts to 'correct' IOP for corneal physical properties."

Recruited between 1993 and 1997, the EPIC-Norfolk cohort was made up of approximately 25,000 predominantly Caucasian men and women aged 40 to 79 living in eastern England. From 2006 to 2010, a health examination was conducted to objectively assess various physical, cognitive and ocular characteristics of participants. The research team used a non-contact tonometer, the Ocular Response Analyzer, to obtain eye pressure and corneal biomechanical data from 4,184 study participants, now aged 48 to 91 years.

"The accurate measurements of IOP and interpretation of the results in terms of what is seen in the 'normal' population are cardinal pieces of information when healthcare professionals conduct routine eye examinations," said Foster. "We will be using our results to assess the validity of current glaucoma treatment guidelines, with respect to levels of risk attributed to specific levels of IOP."

The ARVO peer-reviewed journal Investigative Ophthalmology & Visual Science (IOVS) publishes results from original hypothesis-based clinical and laboratory research studies, as well as Reviews, Perspectives, and Special Issues. IOVS 2009 Impact Factor ranks No. 4 out of 45 among ophthalmology journals. The journal is online-only and articles are published daily.

The Association for Research in Vision and Ophthalmology (ARVO) is the largest eye and vision research organization in the world. Members include more than 12,500 eye and vision researchers from over 80 countries. ARVO encourages and assists research, training, publication and knowledge-sharing in vision and ophthalmology.

Katrina Norfleet | EurekAlert!
Further information:
http://www.arvo.org

More articles from Studies and Analyses:

nachricht Study relating to materials testing Detecting damages in non-magnetic steel through magnetism
23.07.2018 | Technische Universität Kaiserslautern

nachricht Innovative genetic tests for children with developmental disorders and epilepsy
11.07.2018 | Christian-Albrechts-Universität zu Kiel

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

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

Im Focus: It’s All in the Mix: Jülich Researchers are Developing Fast-Charging Solid-State Batteries

There are currently great hopes for solid-state batteries. They contain no liquid parts that could leak or catch fire. For this reason, they do not require cooling and are considered to be much safer, more reliable, and longer lasting than traditional lithium-ion batteries. Jülich scientists have now introduced a new concept that allows currents up to ten times greater during charging and discharging than previously described in the literature. The improvement was achieved by a “clever” choice of materials with a focus on consistently good compatibility. All components were made from phosphate compounds, which are well matched both chemically and mechanically.

The low current is considered one of the biggest hurdles in the development of solid-state batteries. It is the reason why the batteries take a relatively long...

Im Focus: Color effects from transparent 3D-printed nanostructures

New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference

Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...

Im Focus: Unraveling the nature of 'whistlers' from space in the lab

A new study sheds light on how ultralow frequency radio waves and plasmas interact

Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...

Im Focus: New interactive machine learning tool makes car designs more aerodynamic

Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.

When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...

Im Focus: Robots as 'pump attendants': TU Graz develops robot-controlled rapid charging system for e-vehicles

Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.

Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

LaserForum 2018 deals with 3D production of components

17.08.2018 | Event News

Within reach of the Universe

08.08.2018 | Event News

A journey through the history of microscopy – new exhibition opens at the MDC

27.07.2018 | Event News

 
Latest News

A paper battery powered by bacteria

21.08.2018 | Power and Electrical Engineering

Protein interaction helps Yersinia cause disease

21.08.2018 | Life Sciences

Biosensor allows real-time oxygen monitoring for 'organs-on-a-chip'

21.08.2018 | Medical Engineering

VideoLinks
Science & Research
Overview of more VideoLinks >>>