As novel fabrication technologies, such as 3D printing, are being adopted into the mainstream, it is no longer necessary to compromise complexity for utility. In this project, a tool for designing custom eyewear was made that enables the consumer to specify the product to their exact taste and preferences. A parameterization of the frames was developed in Grasshopper with a simple UI interface. The tool allows for quick and precise exploration of various frame shapes, and the UI is simple enough for a layperson to design glasses that suit their style.