Homonymous Visual Field Loss and Its Impact on Visual Exploration: A Supermarket Study.

ABSTRACT:

Purpose

Homonymous visual field defects (HVFDs) may critically interfere with quality of life. The aim of this study was to assess the impact of HVFDs on a supermarket search task and to investigate the influence of visual search on task performance.

Methods

Ten patients with HVFDs (four with a right-sided [HR] and six with a left-sided defect [HL]), and 10 healthy-sighted, sex-, and age-matched control subjects were asked to collect 20 products placed on two supermarket shelves as quickly as possible. Task performance was rated as "passed" or "failed" with regard to the time per correctly collected item (T_C -failed = 4.84 seconds based on the performance of healthy subjects). Eye movements were analyzed regarding the horizontal gaze activity, glance freque

SUBMITTER: Kasneci E 

PROVIDER: S-EPMC4219364 | biostudies-literature | 2014 Oct

REPOSITORIES: biostudies-literature