An eye exam entails more than simply getting new glasses or contacts. Many people don’t realize that the most important aspect of the eye exam is checking the health of the eyes, both inside and out. If the eyes are not healthy, the glasses prescription is the least of everyone’s concerns. Even if you’re not experiencing any noticeable change in your vision, periodic comprehensive eye exams are important. Earlier detection of many illnesses allows for earlier treatment and a better visual outcome for most.