In Children can be manifest by below expected reading abilities in an otherwise normal child. All current research indicates that dyslexia is a disorder of language. A defect in language processing causes the reading disability. Vision problems DO NOT cause reading difficulties. Because reading disorders are due to a primary language dysfunction, they should be treated as such.
Treatment requires a multidisciplinary approach involving educators, psychologists and physicians.
The link between vision and reading is so logical that people have thought a vision abnormality must cause the reading problem. While vision therapy itself is not harmful, it may delay the proper treatment that a child requires.