Not all customers are satisfied with the glasses or contact lenses offered as mass-produced items. A growing group of patients with complex visual impairments or specific professional and athletic requirements needs precisely tailored vision aids. This book provides practical tips with clear action guidelines: a comprehensive overview of all modern vision aids, instructions for conducting and interpreting relevant and truly effective examination methods, additional methods that are no longer generally applied, a critical evaluation of all presented procedures, fundamental insights into each issue, as well as application conditions and limitations.