An ophthalmic system comprises a Refraction Modification System for modifying a refraction of an eye, in response to refraction modification parameters； and a Prescription Engine, for generating the refraction modification parameters for the Refraction Modification System by a Prescription Algorithm that combines one or more diagnostic factor, determined by an ophthalmic diagnostic device, and one or more patient factor. Correspondingly, a method of operating an ophthalmic system comprises receiving one or more diagnostic factor by a Prescription Engine, determined by an ophthalmic diagnostic device； receiving one or more patient factor by the Prescription Engine； and generating refraction modification parameters by the Prescription Engine for a Refraction Modification System by combining the one or more diagnostic factor and the one or more patient factor with a Prescription Algorithm； wherein the Refraction Modification System is configured for modifying a refraction of an eye, in response to the generated refraction modification parameters.
