A binocular pinhole device for visual field constraint during reading.
The Binocular Pinhole Device requires binocular vision, without constraints on head-movements, for viewing a group of letters at one fixation. It is simple and adjustable for individual differences. The role of peripheral vision can be explored in experimental settings.
D055095:Optics and Photonics / Q000295:instrumentation*; D011932:Reading; D014794:Visual Fields