Visual attention span deficit in developmental dyslexia: A meta-analysis.

Background: Visual attention span (VAS) refers to the number of visual elements processed simultaneously in a multielement array. Yet, there are mixed findings regarding VAS deficit in developmental dyslexia (DD) across different tasks, stimuli, languages, control groups, and ages.

Aim: The present meta-analysis aimed to investigate VAS deficit in DD and factors moderating VAS deficit in DD.