Sodium was first isolated by Humphry Davy in 1807 by the electrolysis of sodium hydroxide. Many sodium compounds are useful, such as sodium hydroxide (lye) for soap-making and sodium chloride for use as a de-icing agent and a nutrient (edible salt). Sodium is an essential element for all animals and some plants.
Facts About Age-Related Macular Degeneration This information was developed by the National Eye Institute to help patients and their families search for general information about age-related macular degeneration.
wikiHow to Reduce The Effects of Macular Degeneration. Macular degeneration or age-related macular degeneration (AMD) is the leading cause of vision loss for people aged 60 and older. It is a painless medical condition that affects the macula, which is the part of the retina that focuses on central vision.