Abstract: A process for creating a production specification for a customized eyeglass frame for a patient includes the following steps. A library is accessed having fully parameterized standardized models for characterizing a plurality of eyeglass frame styles. The models are configured to accept a plurality of customization inputs including patient biometric data. A customized model of an eyeglass frame is then constructed by populating the fully parameterized standardized model corresponding to the eyeglass frame style selected by the patient with the customization inputs for the patient. An output is generated from the customized model, the output corresponding to the production specification for the customized eyeglass frame.