Non-dyslexic children with poor colour perception can also have learning difficulties, since educational material relies heavily on colour. An important example of such disability is dyslexia, defined broadly as difficulty with learning to read and spell significantly greater than expected from a person's intelligence, despite normal schooling and health. Talented dyslexics include Albert Einstein, Leonardo Da Vinci, Walt Disney, Chef, Jackie Stewart, Eddie Izzard, Richard Branson, and Duncan Goodhew. The vast majority of people with dyslexia can lead perfectly normal lives if they are given the help they need.
Many dyslexic readers experience visual discomfort or visual distortions to text.
Also, some may be hypersensitive to strong visual contrasts, such as black text on a white page. These problems can be alleviated by patented ChromaGen Filter lenses. The haploscopic nature of the ChromaGen system means that, by using a simple diagnostic procedure c6mbined with l specially treated, colored lenses, a finely tuned result can be achieved. Colored lenses have been used to help dyslexics in the past, but the haploscopic prescribing of ChromaGen ensures that the optimum result is more easily obtained. In clinical trials, the ChromaGen lens system has been shown to benefit dyslexics who suffer from perceived distortions of text, which make reading more difficult.