Adjusting Typographic Metrics to Improve Reading for People with Low Vision and Other Print Disabilities

A new software technique called typometrics is presented. This enables users to choose a wide range of typographic metrics to assist reading. A software implementation called TRx (Typometric Prescription) is described. TRx is a style authoring tool for web languages. Designed for use by assistive technology (AT) specialists and users with print disabilities, this software enables users to create personal reading environments with all the range of style available to authors of documents. The article concludes with a description of a three part study planned to collect baseline data for implementing typometric interventions to improve reading.