The present invention tests and/or trains the visual sensitivity of a subject using adaptable visual indicia. One or more visual indicia possessing a visual trait are displayed to the subject. The displayed visual indicia possessing a visual trait may be adjusted to determine when a subject can and cannot...http://www.google.com/patents/US8197065?utm_source=gb-gplus-sharePatent US8197065 - Vision testing and/or training using adaptable visual indicia
