Eye Exams Why are Eye Exams Important? Catching problems in their early stages can prevent vision loss. An eye exam can do this by catching things you haven’t yet noticed. Preparing for an Eye Exam Make the most of your exams by knowing how often to get them, and what information to bring with you. Common Tests You may be given these common tests during a routine eye exam. Find out what you can expect. Medications It's important to understand the relationship between your eyes and any medications you may currently be using.