Integrating oculomotor and perceptual training to induce a pseudofovea: A model system for studying central vision loss.

ABSTRACT: People with a central scotoma often adopt an eccentric retinal location (Preferred Retinal Locus, PRL) for fixation. Here, we proposed a novel training paradigm as a model system to study the nature of the PRL formation and its impacts on visual function. The training paradigm was designed to effectively induce a PRL at any intended retinal location by integrating oculomotor control and pattern recognition. Using a gaze-contingent display, a simulated central scotoma was induced in eight normally sighted subjects. A subject's entire peripheral visual field was blurred, except for a small circular aperture with location randomly assigned to each subject (to the left, right, above, or below the scotoma). Under this viewing condition, subjects performed a demanding oculomotor and visual recog

SUBMITTER: Liu R 

PROVIDER: S-EPMC5089533 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature