Fernando Vargas-Martín1, Eli Peli. 1. Laboratorio de Optica, Departamento de Física, Universidad de Murcia, Spain. vargas@um.es
Abstract
PURPOSE: An augmented-view device for patients with severely restricted peripheral visual fields (tunnel vision) was proposed, combining a see-through head-mounted display and a simultaneous minified view of a wide field presented as contour information. Here we create and evaluate multiple implementations of the augmented-view concept and report responses from potential users. METHODS: Several prototypes using commercial off-the-shelf devices were implemented. Then they were evaluated in real environments in daylight and at night by two retinitis pigmentosa patients. RESULTS: Effective expansion of the visual field of patients was achieved. Patients indicated their preferences for different properties, devices, and combinations. CONCLUSIONS: Patients found the augmented-view concept of help for their impairment, but wanted much more ergonomic design than the prototypes provided. Benefits, limitations, and possible improvements for the evaluated devices are discussed.
PURPOSE: An augmented-view device for patients with severely restricted peripheral visual fields (tunnel vision) was proposed, combining a see-through head-mounted display and a simultaneous minified view of a wide field presented as contour information. Here we create and evaluate multiple implementations of the augmented-view concept and report responses from potential users. METHODS: Several prototypes using commercial off-the-shelf devices were implemented. Then they were evaluated in real environments in daylight and at night by two retinitis pigmentosapatients. RESULTS: Effective expansion of the visual field of patients was achieved. Patients indicated their preferences for different properties, devices, and combinations. CONCLUSIONS:Patients found the augmented-view concept of help for their impairment, but wanted much more ergonomic design than the prototypes provided. Benefits, limitations, and possible improvements for the evaluated devices are discussed.
Authors: Ashley D Deemer; Christopher K Bradley; Nicole C Ross; Danielle M Natale; Rath Itthipanichpong; Frank S Werblin; Robert W Massof Journal: Optom Vis Sci Date: 2018-09 Impact factor: 1.973