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HEALTH DHA™

Age related Macular Degeneration

This is a subset of information that was developed by the National Eye Institute to help patients and their families search for general information about age-related macular degeneration.
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And herewith a hyperlink to download the EFSA health claims report on omega-3 PUFA's and to obtain a review from Nutrients 2018 regarding oxidative damage of the eye. 
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health_claims_dha_epa_2011-efsa_journal.pdf
File Size: 448 kb
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2020_04_16pb_nutrients-2018-10_dha_and_eye.pdf
File Size: 2130 kb
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Facts About Age-Related Macular Degeneration
What you should know about age-related macular degeneration
 
What is AMD?
AMD is a common eye condition and a leading cause of vision loss among people age 50 and older. It causes damage to the macula, a small spot near the center of the retina and the part of the eye needed for sharp, central vision, which lets us see objects that are straight ahead.
In some people, AMD advances so slowly that vision loss does not occur for a long time. In others, the disease progresses faster and may lead to a loss of vision in one or both eyes. As AMD progresses, a blurred area near the center of vision is a common symptom. Over time, the blurred area may grow larger or you may develop blank spots in your central vision. Objects also may not appear to be as bright as they used to be.
AMD by itself does not lead to complete blindness, with no ability to see. However, the loss of central vision in AMD can interfere with simple everyday activities, such as the ability to see faces, drive, read, write, or do close work, such as cooking or fixing things around the house.
The Macula
The macula is made up of millions of light-sensing cells that provide sharp, central vision. It is the most sensitive part of the retina, which is located at the back of the eye. The retina turns light into electrical signals and then sends these electrical signals through the optic nerve to the brain, where they are translated into the images we see. When the macula is damaged, the center of your field of view may appear blurry, distorted, or dark.

What are the stages of AMD?
There are three stages of AMD defined in part by the size and number of drusen under the retina. It is possible to have AMD in one eye only, or to have one eye with a later stage of AMD than the other.
• Early AMD. Early AMD is diagnosed by the presence of medium-sized drusen, which are about the width of an average human hair. People with early AMD typically do not have vision loss.
• Intermediate AMD. People with intermediate AMD typically have large drusen, pigment changes in the retina, or both. Again, these changes can only be detected during an eye exam. Intermediate AMD may cause some vision loss, but most people will not experience any symptoms.
• Late AMD. In addition to drusen, people with late AMD have vision loss from damage to the macula. There are two types of late AMD:
o In geographic atrophy (also called dry AMD), there is a gradual breakdown of the light-sensitive cells in the macula that convey visual information to the brain, and of the supporting tissue beneath the macula. 
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