US Patent 7287853 Spectacle and contact lens selecting system and method thereof

A spectacle and contact lens selecting system includes an input unit for inputting information related to a state of eyes of a user, an eyeball optical model deciding unit for deciding an eyeball optical model corresponding to the information related to the state of the eyes input by the input unit, an eyeball accommodation range determination unit for examining optical performance of an eyeball within a range of accommodation of the user in the decided eyeball optical model to determine the range of accommodation of the eyeball, a lens power selecting unit for examining optical performance when the user wears spectacles or contact lenses to select a lens power, and a wearing state display unit for displaying a wearing state of the spectacles or the contact lenses to be selected.