Featured Research

from universities, journals, and other organizations

Are Asians as vulnerable to age-related macular degeneration as Caucasians?

Date:
May 4, 2010
Source:
American Academy of Ophthalmology
Summary:
A major review concludes that Asians may be just as susceptible to age-related macular degeneration as Caucasians. Asians have long been considered a low risk group for AMD, which is a leading cause of vision loss in older Caucasians. Since the number of elderly people is increasing in Asia, the study suggests that health systems there need to prepare for an onslaught of AMD.

A major review by Tien Yi Wong, MD, MPH, PhD, and Singapore Eye Research Institute colleagues concludes that Asians may be just as susceptible to age-related macular degeneration as Caucasians. Asians have long been considered a low risk group for AMD, which is a leading cause of vision loss in older Caucasians. Since the number of elderly people is increasing in Asia, Dr. Wong's study suggests that health systems there need to prepare for an onslaught of AMD.

Related Articles


Pooling results from nine standardized-diagnosis studies in five Asian populations (Japan, China, South Korea, India and Singapore), Dr. Wong's group confirmed prevalence of early-stage AMD as 6.8 percent and late-stage as 0.56 percent, comparable to Caucasians at 8.8 percent and 0.59 percent, respectively. All rates pertain to people aged 40 to 79 years. Also, among those with late AMD, the "wet" (neovascular) form appeared to be more prevalent in Asians than in whites. Asian men were more likely to develop late AMD than white men and much more likely than Asian women.

The researchers speculate that Asian men may be more susceptible to polypoidal choroidal vasculopathy (PCV), abnormal development of blood vessels in the deeper layers of the eye. Whether PCV is a sub-type of AMD or a separate disorder remains controversial; it is also unclear whether PCV responds well to medications that inhibit abnormal blood vessel growth (anti-vascular endothelial growth factor drugs such as Avastin and Lucentis) that help many wet AMD patients keep their vision.

"Future studies should evaluate whether there are 'Asian forms' of AMD and discern other racial/ethnic differences in Asian susceptibility," Dr. Wong said."Our meta-analysis could not adjust for important risk factors like smoking, common among many Asian men; nor did this study include all relevant Asian racial/ethnic groups," he added.

The research appears in the May issue of Ophthalmology, the journal of the American Academy of Ophthalmology.


Story Source:

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


Journal Reference:

  1. Ryo Kawasaki, Miho Yasuda, Su Jeong Song, Shih-Jen Chen, Jost B. Jonas, Jie Jin Wang, Paul Mitchell, Tien Y. Wong. The Prevalence of Age-Related Macular Degeneration in AsiansA Systematic Review and Meta-Analysis. Ophthalmology, 2010; 117 (5): 921 DOI: 10.1016/j.ophtha.2009.10.007

Cite This Page:

American Academy of Ophthalmology. "Are Asians as vulnerable to age-related macular degeneration as Caucasians?." ScienceDaily. ScienceDaily, 4 May 2010. <www.sciencedaily.com/releases/2010/05/100504205639.htm>.
American Academy of Ophthalmology. (2010, May 4). Are Asians as vulnerable to age-related macular degeneration as Caucasians?. ScienceDaily. Retrieved March 31, 2015 from www.sciencedaily.com/releases/2010/05/100504205639.htm
American Academy of Ophthalmology. "Are Asians as vulnerable to age-related macular degeneration as Caucasians?." ScienceDaily. www.sciencedaily.com/releases/2010/05/100504205639.htm (accessed March 31, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Tuesday, March 31, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

7-Year-Old Girl Gets 3-D Printed 'robohand'

7-Year-Old Girl Gets 3-D Printed 'robohand'

AP (Mar. 31, 2015) — Although she never had much interest in prosthetic limbs before, Faith Lennox couldn&apos;t wait to slip on her new robohand. The 7-year-old, who lost part of her left arm when she was a baby, grabbed it as soon as it came off a 3-D printer. (March 31) Video provided by AP
Powered by NewsLook.com
Solitair Device Aims to Takes Guesswork out of Sun Safety

Solitair Device Aims to Takes Guesswork out of Sun Safety

Reuters - Innovations Video Online (Mar. 31, 2015) — The Solitair device aims to take the confusion out of how much sunlight we should expose our skin to. Small enough to be worn as a tie or hair clip, it monitors the user&apos;s sun exposure by taking into account their skin pigment, location and schedule. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Soda, Salt and Sugar: The Next Generation of Taxes

Soda, Salt and Sugar: The Next Generation of Taxes

Washington Post (Mar. 30, 2015) — Denisa Livingston, a health advocate for the Dinι Community Advocacy Alliance, and the Post&apos;s Abby Phillip discuss efforts around the country to make unhealthy food choices hurt your wallet as much as your waistline. Video provided by Washington Post
Powered by NewsLook.com
UnitedHealth Buys Catamaran

UnitedHealth Buys Catamaran

Reuters - Business Video Online (Mar. 30, 2015) — The $12.8 billion merger will combine the U.S.&apos; third and fourth largest pharmacy benefit managers. Analysts say smaller PBMs could also merge. Fred Katayama reports. Video provided by Reuters
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