A method for displaying an optical performance preferably applicable to also an axially asymmetric spectacle lens is provided. First, a clear visual region of the spectacle lens is determined using an evaluation function which evaluates the optical performance of the spectacle lens. Next, a clear visual...http://www.google.com/patents/US7309124?utm_source=gb-gplus-sharePatent US7309124 - Method for indicating optical performance of spectacle lens
