Inclusion Criteria:  School children from CE2 to CM2, aged 8 to 11 years Dyslexic children with a VA span deficit (composite visual-attention span below the fifteenth percentile and a letter threshold above or equal to the twentieth percentile with the - - - Evadys(c) battery) Established diagnosis of Dyslexia Children whose parents/legal guardians have signed informed consent and agree to participate in the study Children whose first language is French or who have been educated in French since kindergarten Raven's Progressive Matrices score above the 20th percentile or a WISC IV or V Verbal Comprehension Index or WISC IV or V Perceptual/Fluid Reasoning Index above 85 or documented/objectifiable absence of intellectual deficit Child with access to a computer Normal or corrected vision and audition  Exclusion Criteria:  Attention deficit hyperactivity disorder,dysphasia, dyspraxia, Autism Spectrum Disorder Neurological disorders Children who have missed 3 months or more of school in the current or previous year (excluding lockdown) Children not affiliated to a social security scheme