The ophthalmic device comprises a memory, display, image data and user input. Image data stored on the memory is used to generate a plurality of visual acuity images. The user input is operable by a user to select selected visual acuity images from the plurality of visual acuity images for display on...http://www.google.de/patents/US7771051?utm_source=gb-gplus-sharePatent US7771051 - Near eye opthalmic device
