Many people take their eyesight for granted, but a number of conditions can threaten it.
One of the most common is called macular degeneration. It's the leading cause of blindness in people age 65 and older. There's not much you can do to change two of the major contributors, aging and genetics, but new research indicates there is something you can change that may help reduce the risk. HealthWeek's Andrew Holtz explains. I've become a Popeye.