Many of us take our vision for granted. We assume that if we can see fine then we do not need an eye exam. Periodic eye and vision examinations performed by an optometrist are an important part of caring for your eyes, vision, and overall health since many eye and vision problems have no obvious signs or symptoms. Obvious signs that it is time for an eye exam include; difficulties seeing in the distance or up close, unexplained headaches or trouble reading at any distance. Early diagnosis and treatment of eye and vision problems can help prevent vision loss.