Featured Research

from universities, journals, and other organizations

Vitamins Help Prevent Vision Loss From AMD -- If Used Correctly

Date:
June 6, 2008
Source:
American Academy of Ophthalmology
Summary:
A study of individuals with age-related macular degeneration (AMD) found that nearly 40 percent of those likely to benefit from specific vitamin/mineral supplements were either not taking the supplements or not using the recommended dosage. The study also showed that some patients used high-dose supplements even in the absence of evidence that these would be effective for their levels of AMD or other eye conditions.

A study of individuals with age-related macular degeneration (AMD), based at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, found that nearly 40 percent of those likely to benefit from specific vitamin/mineral supplements were either not taking the supplements or not using the recommended dosage. The study also showed that some patients used high-dose supplements even in the absence of evidence that these would be effective for their levels of AMD or other eye conditions.

The ophthalmic researchers, led by Susan B. Bressler, M.D., concluded that AMD patients appear to lack a clear understanding of supplement use in AMD treatment, and that "improved patient education may be vital to maximize the potential" of this therapy.

The public health impact could be substantial: in the United States if the appropriate patients used the correct supplements, about 300,000 people could potentially avoid advanced AMD within a five year period. At least eight million Americans are at risk for advanced AMD which can destroy the central vision needed to recognize faces, read, drive and enjoy daily life. In 2001 the Age-Related Eye Disease Study (AREDS) reported findings on its clinical trial that identified a specific formula of antioxidants (vitamin C, vitamin E and beta-carotene) and zinc that reduced the probability of progression to advanced AMD by 25 percent-- either the "wet" or central geographic atrophy forms---among individuals at risk.

Those who have AMD and smoke may need to use a formula that omits beta-carotene since high doses of this micronutrient have been associated with increased rates of lung cancer and mortality. Though effective treatment for advanced AMD is available, it can be expensive and is limited to the "wet" form. Also, since such treatment may not restore vision already lost to the illness, it remains important to use all effective approaches to preventing AMD progression.

The Wilmer Institute-based study surveyed 332 individuals who identified themselves as having AMD; the median participant age was 79 years. Of these, 228 were considered candidates for benefit from the AREDS formula, but only 140 patients (61 percent) in this group were using the correct formula as recommended. Nearly 50 percent of the candidates-for-benefit did not correctly answer questions on the relevance of vitamin/mineral supplements to their eye condition and how their vision might benefit. But patients who indicated that they partially or fully understood the rationale for supplements were about twice as likely to be using the AREDS formula correctly.

This research was published in the June 2008 issue 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.


Cite This Page:

American Academy of Ophthalmology. "Vitamins Help Prevent Vision Loss From AMD -- If Used Correctly." ScienceDaily. ScienceDaily, 6 June 2008. <www.sciencedaily.com/releases/2008/06/080602121006.htm>.
American Academy of Ophthalmology. (2008, June 6). Vitamins Help Prevent Vision Loss From AMD -- If Used Correctly. ScienceDaily. Retrieved September 1, 2014 from www.sciencedaily.com/releases/2008/06/080602121006.htm
American Academy of Ophthalmology. "Vitamins Help Prevent Vision Loss From AMD -- If Used Correctly." ScienceDaily. www.sciencedaily.com/releases/2008/06/080602121006.htm (accessed September 1, 2014).

Share This




More Health & Medicine News

Monday, September 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

We've Got Mites Living In Our Faces And So Do You

We've Got Mites Living In Our Faces And So Do You

Newsy (Aug. 30, 2014) A new study suggests 100 percent of adult humans (those over 18 years of age) have Demodex mites living in their faces. Video provided by Newsy
Powered by NewsLook.com
Liberia Continues Fight Against Ebola

Liberia Continues Fight Against Ebola

AFP (Aug. 30, 2014) Authorities in Liberia try to stem the spread of the Ebola epidemic by raising awareness and setting up sanitation units for people to wash their hands. Duration: 00:41 Video provided by AFP
Powered by NewsLook.com
California Passes 'yes-Means-Yes' Campus Sexual Assault Bill

California Passes 'yes-Means-Yes' Campus Sexual Assault Bill

Reuters - US Online Video (Aug. 30, 2014) California lawmakers pass a bill requiring universities to adopt "affirmative consent" language in their definitions of consensual sex, part of a nationwide drive to curb sexual assault on campuses. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
New Drug Could Reduce Cardiovascular Deaths

New Drug Could Reduce Cardiovascular Deaths

Newsy (Aug. 30, 2014) The new drug from Novartis could reduce cardiovascular deaths by 20 percent compared to other similar drugs. 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:
from the past week

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