DefinitionMacular degeneration is an eye disorder that damages the center of the retina, which is called the macula. This makes it difficult to see fine details.Alternative NamesAge-related macular degeneration (ARMD); AMD; senile macular degeneration (SMD) is an older name that is no longer in common use.Causes, incidence, and risk factorsThe retina is the layer of tissue at the back of the inner eye. It changes light and images that enter the eye into nerve signals that are sent to the brain. The macula is the part of the retina that makes our vision sharper and more detailed.Macular degeneration is caused by damage to the area around blood vessels that supply the macula. This change in the blood vessels damages the macula.Two phases of macular degeneration (AMD) exist:Dry macular degene