Introduction Vision 20 Your eyes are an important part of your health. Most people rely on their eyes to see and make sense of the world around them. However, some eye diseases can lead to vision loss , so it is important to identify and treat these conditions as early as possible. You should have your eyes checked as often as your healthcare provider recommends, or if you develop new vision problems. Just as it is important to keep your body healthy, you also need to keep your eyes healthy.