What is dyslexia?
According to the British Dyslexia Association, dyslexia is an umbrella term covering a range of learning related problems.
So what are the symptoms?
The main symptoms in the perpetual distortion of the text that makes reading more difficult include
(1) Blurring (non-refractive).
(2) Movement of the letters and words.
(3) ‘Shimmering’ on the page.
(4) The words sinking into the white background of the page.
(5) Pattern being formed by the spaces between the words and lines, which interfere with reading.
Some individuals even find writing ‘falling’ off the page, where others see ‘rivers’ running through the text. One individual said “I used to re-read every passage repeatedly to make sense of it – but I thought everyone did this.”
Everyone has a natural transfer for visual information travelling from the eye to the brain (magnocellular pathway). But in the case of dyslexics, the transfer speed is too quick and needs to be slowed down by using coloured lenses (haploscopic filters) of differing wavelengths – to slow the information transfer by differing amounts, depending on that individual’s needs. The haploscopic filters also work to resynchronise the visual information into a format the brain will easily recognise.
It was Professor John Stein of Oxford University Dyslexia Unit that first found that about half of dyslexic individuals would benefit from using coloured lenses – giving clearer text, ease of reading and better word and number recognition