Patent ID: 9704411
Date: 2017-07-11
CPC Classifications: A61B,G09B

Claim:
1. A computer-based system for calculating a log MAR value for a reading acuity test, comprising: receiving an inventory of words from a user; storing said inventory of words in a database; randomly selecting a plurality of words from said inventory of words; a means for displaying said plurality of words in a font size on a first monitor, where said plurality of words will be read aloud by a first person taking said test; a means for displaying a copy of said plurality of words on a second monitor, where said plurality of words will be observable by a second person, and each of said plurality of words is selectable by said second person using a pointing device, such that said second person may select any of such words that are read incorrectly by said first person; a means for measuring the amount of time said first person takes to read said plurality of words on said first monitor; a means for calculating a reading rate based upon said plurality of words and said amount of time, where said reading rate is modified in accordance with the number of words selected by said second person as read incorrectly; a means for measuring a distance between said first person and said first monitor, said means for measuring said distance comprising photogrammetry; and, a means for calculating said log MAR value based upon said distance, said font size and said reading rate.