This is more commonly done by optometrists in the U.K. Some optometrists or specialists in visual stress are able to conduct an assessment using colored overlays and/or tinted lenses. Of course tests of vision are even more important if you suspect that visual stress may be a factor. At a minimum, the assessment can rule out nearĪnd far sightedness. (Taken at Opticalm Canada, Ottawa)Ī visit to your optometrist should be among the first things you do when a child is struggling with reading, regardless of what the ultimate cause might be. The Intuitive Colorimeter helps identify the perfect color tint for each individual. Ophthal Physiol Opt 1:163–171 - Wilkins AJ, Neary Huang J, Zong X, Wilkins A, Jenkins B, Bozoki A, Cao Y (2011)Įffects of coloured glasses. Tints reduce cortical hyperactivation in migraines. Brain 107:989–1017 - Wilkins AJ, Nimmo-Smith I, Tait A, McManus C,ĭella Sala S,Tilley A, Arnold K, Barrie M, Scott S (1984). Exactly what is causing the stress in brain processing is unknown, but the articles below explore some possibilities.ĭiscomfort. The cause of reading problems associated with mental processing is generally believed to be visual stress, sometimes referred to as Irlen Syndrome or Scotopic Sensitivity Syndrome. For more information try the studies below: Causes of visual dyslexia (cognitive) The exact cause of visual processing difficulty in the brain is not known, but may result from over activation of some areas. Keep in mind that that none of these causes are reading or learning problems in themselves-they are visual problems that contribute to reading problems. Move your eyes inward to focus normally." But if you have convergence insufficiency, you won't be able to When you read or lookĪt a close object, your eyes should converge-turn inward together toįocus-so that they provide binocular vision and you see a single Properly while you're focusing on a nearby object.
If you've always seen letters moving about on the page, then from your perspective, that's just what letters do. Or words look less crisp, or different than they have before, or that they lookĭifferent from what their friends see. Never seen text differently and therefore cannot report that the text Identifying a visual reading problem is difficult because young readers have
Mental processing problems are often the result of visual stress General Symptoms and Signs
Optical problems often result from simple near or far sightedness. Problems (physical causes) or visual processing disorders (cognitive/neurological causes).
Visual dyslexia is reading difficulty resulting from either optical visual