Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Study predicts 40 percent increase in blindness in Nigeria by 2020

10.09.2009
84 percent of all causes of blindness are either preventable or treatable, study finds

By 2020, 1.4 million Nigerians over age 40 will lose their sight, and the vast majority of the causes are either preventable or treatable, according to the Nigeria National Blindness and Visual Impairment Study Group.

In the September issue of Investigative Ophthalmology and Visual Science, the group shares the second half of the results of the study, which examined almost 15,000 Nigerians over 40 between 2005 and 2007. The goal of the study (Causes of Blindness and Visual Impairment in Nigeria: The Nigeria National Blindness and Visual Impairment Survey) was to help Nigeria create a plan for its participation in the World Health Organization's VISION 2020: The Right to Sight Initiative, which is working globally to eliminate preventable blindness. The first half of the study appeared in Investigative Ophthalmology earlier this year.

About 23 percent had some sort of visual impairment, and 4.2 percent were blind. Cataracts were the most common cause of blindness, with glaucoma second. Refractive errors (which cause nearsightedness, farsightedness and astigmatisms) were frequently the cause of less serious visual impairments. Other common treatable or preventable causes of visual impairment included complications from diabetes, trachoma (a bacterial infection of the eye) and the parasite onchocerciasis, which is transmitted to humans through the bite of a black fly and is prevalent in Africa.

"The high proportion of avoidable blindness … means that appropriate and accessible refraction and surgical services need to be provided," the report states. "If priority attention is not given, the number of blind and severely visually impaired adults in Nigeria will increase by greater than 40 percent over the next decade."

The study noted that groups that had less access to health care were particularly vulnerable to preventable visual impairment.

According to the study, "The difference in the prevalence of vision loss due to cataract between men and women, urban and rural areas, and levels of education in Nigeria almost certainly reflects access to services." The authors recommended vision care plans that target women, rural residents and the less educated.

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. The Association encourages and assists research, training, publication and dissemination of knowledge in vision and ophthalmology.

Jessie Williams | EurekAlert!
Further information:
http://www.arvo.org

More articles from Studies and Analyses:

nachricht Amputees can learn to control a robotic arm with their minds
28.11.2017 | University of Chicago Medical Center

nachricht The importance of biodiversity in forests could increase due to climate change
17.11.2017 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig

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: First-of-its-kind chemical oscillator offers new level of molecular control

DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.

Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...

Im Focus: Long-lived storage of a photonic qubit for worldwide teleportation

MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.

Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...

Im Focus: Electromagnetic water cloak eliminates drag and wake

Detailed calculations show water cloaks are feasible with today's technology

Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...

Im Focus: Scientists channel graphene to understand filtration and ion transport into cells

Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.

To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...

Im Focus: Towards data storage at the single molecule level

The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.

Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

AKL’18: The opportunities and challenges of digitalization in the laser industry

07.12.2017 | Event News

 
Latest News

Engineers program tiny robots to move, think like insects

15.12.2017 | Power and Electrical Engineering

One in 5 materials chemistry papers may be wrong, study suggests

15.12.2017 | Materials Sciences

New antbird species discovered in Peru by LSU ornithologists

15.12.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>