He is the author or co-author of some 30 articles, chapters, and books, including several personality assessment instruments used worldwide to diagnose personality disorders, most notably the Millon Clinical Multiaxial Inventory- III. His website, VisionSimulations.com, contains a variety of simulators programmed to allow patients to reproduce blur, smeared vision, loss of contrast sensitivity, halos, starbursting, visual snow, and blurriness due to dry eye syndrome.