Augmented-view for restricted visual field: multiple device implementations
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Updated: Sep 28, 2026

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition
Published on: July 21, 2020
Fernando Vargas-Martín1, Eli Peli
1Laboratorio de Optica, Departamento de Física, Universidad de Murcia, Spain. vargas@um.es
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.
