They say the eyes are the windows to the soul. We don't know if that's true, but what we do know is that having perfectly healthy eyes—excellent vision and clear eyes, free of pain or other symptoms—are crucial to your health and well-being. The good news is that it's easy to learn more about eye problems, symptoms, and the treatments that will keep you in tip-top shape. About 15 million Americans have some type of vision problem, according to a survey conducted by the Centers for Disease Control and Prevention (CDC). While many of these problems are relatively benign, such as mild nearsightedness, other eye conditions like glaucoma and age-related macular degeneration can trigger vision loss and even blindness. Although many people start developing eye diseases in middle age, their symptoms may not appear until later on, when the condition is more advanced and harder to treat. In fact, some people may not realize they have a vision problem at