Review of Visual Attention Span Characteristics and Intervention in Developmental Dyslexia

Developmental dyslexia is a specific learning disorder with an incidence rate of approximately 5% - 17.5% globally. It is a learning disorder that affects an individual's reading ability and the acquisition of reading-related skills, with core characteristics including difficulties in decoding text, slow reading speed, and limited comprehension. It not only impacts an individual's academic performance but may also have long-term effects on their self-esteem, social skills, and future career development. This article synthesizes multiple kinds of literature to conduct an in-depth analysis of the visual attention span characteristics and influencing factors of individuals with developmental dyslexia and discusses the relevant effects in detail. Research shows that the developmental dyslexia group has a visual attention span deficit, and this deficit is modulated by multiple factors. Meanwhile, two intervention methods, visual attention training tasks and action video games, have been proven to effectively improve the visual attention ability and reading performance of children with dyslexia.