Cataracts are a common and often inevitable side effect of growing old. In the United States alone, over 24 million people over the age of 40 live with this eye condition. But despite being so common worldwide, cataracts are an often misunderstood condition. So, why exactly are cataracts so common, and how do they form? What can be done if and when an individual develops cataracts? What are the dangers associated with the condition?
Click ahead to learn the answers to all these questions and more.