Age-related macular degeneration is one of the most common causes of vision loss, especially in the elderly. It affects the macula, the center area of the retina, and can lead to declines in razor-sharp central vision and also blindness, experts say. Scientists have linked a variety of factors to the problem including genetics already, smoking and nourishment, said Bernstein, who was simply not mixed up in new study. However, treatment for AMD might be limited according to the kind of macular degeneration a person develops, he said. Prior research has produced blended findings about links between carotenoids and macular degeneration, the researchers said. Therefore, a team led by Joanne Wu, a graduate student in nutrition epidemiology at the Harvard College of Public Health in Boston, sought to raised understand any connection.The average age group of victims is 12. Want to know more about Naegleria fowleri, and you skill to reduce your risk? Click here to learn more.. A South American palm tree produces a substance which you can use as a substitute for ivory The harvest, sale, import and export of ivory are banned in most countries in an attempt to stem the low cost slaughter of elephants and other tusked animals . Yet there continues to be a demand for an all natural material with the same distinctive look and versatility.