However, dyslexia is not a visual problem that involves reading letters or words backwards

Evidence suggests that dyslexia results from differences in how the brain processes written and/or verbal language. Although dyslexia is the result of a neurological difference, it is not an intellectual disability. Dyslexia occurs at all levels of intelligence, average, above average, and highly gi

Research also suggests an association with biochemical and genetic markers. However, experts disagree over the precise definition and criteria for diagnosis, and some advocate that the term dyslexia be dropped altogether and replaced with the term reading disorder or reading disability (RD). Because reading skills occur on a continuum with no clear distinction between typical readers and dyslexic readers, some experts assert that the term dyslexia should be reserved for the two to five percent with the most severe reading deficits.