Featured Research

from universities, journals, and other organizations

Does Nearsightedness Reduce The Risk Of Diabetic Retinopathy?

Date:
October 26, 2009
Source:
American Academy of Ophthalmology
Summary:
To learn more about factors that may reduce diabetic retinopathy (DR) risk, researchers studied how refractive error (vision worse than 20/20, without glasses) relates to the presence and severity of DR. Earlier, smaller studies had suggested a protective effect for nearsightedness (myopia), but were inconclusive.

To learn more about factors that may reduce diabetic retinopathy (DR) risk, Laurence Shen Lim, MRCS, and colleagues at the Singapore National Eye Centre, studied how refractive error (vision worse than 20/20, without glasses) relates to the presence and severity of DR. Earlier, smaller studies had suggested a protective effect for nearsightedness (myopia), but were inconclusive.

Related Articles


Dr. Lim's study -- presented at the 2009 Joint Meeting of the American Academy of Ophthalmology (AAO) and the Pan-American Association of Ophthalmology (PAAO) -- is the first to include axial length (AL, measured from the front to back of the eye) in an analysis of the myopia-DR relationship. About 10 percent of people with diabetes develop DR, which damages the eye's retina, the specialized tissue where images are focused for relay to the brain's visual cortex. DR is a major cause of vision loss worldwide.

Reduced risk of DR, especially severe DR, was found in patients whose myopia resulted from two anatomical characteristics: longer axial length and deeper anterior eye chamber (anterior chamber depth, ACD). The findings held true for all degrees of refractive error in these patients. The 675 diabetics evaluated by Dr. Lim's team were drawn from the Singapore Malay Eye Study, a population based study of adults aged 40 to 80.

"This DR-protective effect may result from conditions often found in myopia, including atrophy of the retina, choroid, or vitreous," Dr. Lim said. Though these conditions can cause vision problems in other circumstances, they may lower DR risk by reducing retinal metabolic needs and/or improving oxygen circulation in the back of the eye. "Our findings add to our understanding of how DR develops and the assessment of DR risk in nearsighted patients," Dr. Lim added.


Story Source:

The above story is based on materials provided by American Academy of Ophthalmology. Note: Materials may be edited for content and length.


Cite This Page:

American Academy of Ophthalmology. "Does Nearsightedness Reduce The Risk Of Diabetic Retinopathy?." ScienceDaily. ScienceDaily, 26 October 2009. <www.sciencedaily.com/releases/2009/10/091025193500.htm>.
American Academy of Ophthalmology. (2009, October 26). Does Nearsightedness Reduce The Risk Of Diabetic Retinopathy?. ScienceDaily. Retrieved November 22, 2014 from www.sciencedaily.com/releases/2009/10/091025193500.htm
American Academy of Ophthalmology. "Does Nearsightedness Reduce The Risk Of Diabetic Retinopathy?." ScienceDaily. www.sciencedaily.com/releases/2009/10/091025193500.htm (accessed November 22, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Saturday, November 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

WFP: Ebola Risks Heightened Among Women Throughout Africa

WFP: Ebola Risks Heightened Among Women Throughout Africa

AFP (Nov. 21, 2014) Having children has always been a frightening prospect in Sierra Leone, the world's most dangerous place to give birth, but Ebola has presented an alarming new threat for expectant mothers. Duration: 00:37 Video provided by AFP
Powered by NewsLook.com
Could Your Genes Be The Reason You're Single?

Could Your Genes Be The Reason You're Single?

Newsy (Nov. 21, 2014) Researchers in Beijing discovered a gene called 5-HTA1, and carriers are reportedly 20 percent more likely to be single. Video provided by Newsy
Powered by NewsLook.com
Raw: Paralyzed Marine Walks With Robotic Braces

Raw: Paralyzed Marine Walks With Robotic Braces

AP (Nov. 21, 2014) Marine Corps officials say a special operations officer left paralyzed by a sniper's bullet in Afghanistan walked using robotic leg braces in a ceremony to award him a Bronze Star. (Nov. 21) Video provided by AP
Powered by NewsLook.com
Milestone Birthdays Can Bring Existential Crisis, Study Says

Milestone Birthdays Can Bring Existential Crisis, Study Says

Newsy (Nov. 21, 2014) Researchers find that as people approach new decades in their lives they make bigger life decisions. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins