Persons affected by glaucoma are over three times more likely to have been involved in falls and motor vehicle accidents than persons of the same age without the condition, say researchers from Dalhousie University in Canada. Their findings are published in the March 2007 issue of Investigative Ophthalmology & Visual Science.
The study involved 48 patients 50 years of age or older with glaucoma and 47 age-matched persons without the eye disease. Glaucoma patients were almost three times as likely to have experienced one or more falls in the previous year and over six times as likely to have been involved in one or more motor vehicle accidents in the previous five years. They were also more likely to have been at-fault for motor vehicle accidents in which they were involved. The strongest risk factor for these motor vehicle accidents was impaired useful field of view.
This research shows higher levels of falls and motor vehicle accidents than found in previous studies. These results have a potential useful application in patient education, licensing of drivers, and intervention programs.
"Based on these results, the research group has started a larger prospective study to better understand why patients with glaucoma may be more likely to have falls and motor vehicle accidents," said researcher Sharon A. Haymes, PhD, of the Department of Ophthalmology and Visual Sciences at Dalhousie University. "We need to find ways to help them minimize their risk."
Glaucoma is a group of diseases of the optic nerve involving loss of retinal ganglion cells in a characteristic pattern of optic neuropathy. If left untreated, glaucoma can lead to permanent damage of the optic nerve and resultant visual field loss, which can progress to blindness. It is the second leading cause of blindness worldwide and affects 1 in 200 people aged 50 and younger and 1 in 10 over the age of 80.
There are currently no known ways to prevent glaucoma. However, studies show that early detection and treatment of the disease, before it causes major vision loss, is the best way to control the disease. The National Eye Institute recommends that persons who are at high risk for the disease (African-Americans over 40; persons over 60; and people with a family history of glaucoma) have their eyes examined and pupils dilated every two years by an eye care professional.
Elinore Tibbetts | EurekAlert!
New antibody analysis accelerates rational vaccine design
09.08.2018 | Scripps Research Institute
Distrust of power influences choice of medical procedures
01.08.2018 | Johannes Gutenberg-Universität Mainz
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...
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....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
Scientists have discovered that the electrical resistance of a copper-oxide compound depends on the magnetic field in a very unusual way -- a finding that could help direct the search for materials that can perfectly conduct electricity at room temperatur
What happens when really powerful magnets--capable of producing magnetic fields nearly two million times stronger than Earth's--are applied to materials that...
The quality of materials often depends on the manufacturing process. In casting and welding, for example, the rate at which melts solidify and the resulting microstructure of the alloy is important. With metallic foams as well, it depends on exactly how the foaming process takes place. To understand these processes fully requires fast sensing capability. The fastest 3D tomographic images to date have now been achieved at the BESSY II X-ray source operated by the Helmholtz-Zentrum Berlin.
Dr. Francisco Garcia-Moreno and his team have designed a turntable that rotates ultra-stably about its axis at a constant rotational speed. This really depends...
08.08.2018 | Event News
27.07.2018 | Event News
25.07.2018 | Event News
14.08.2018 | Information Technology
14.08.2018 | Life Sciences
14.08.2018 | Life Sciences