| Dyslexie regular, bold, italic, italic bold|
Dyslexie is a typeface/font designed to mitigate some of the issues that dyslexics experience when reading. It was developed by Dutch graphic designer Christian Boer while in college to help combat his own dyslexia. Dyslexie is not a cure for dyslexia. In Christian Boer's words, it was designed simply "like a wheelchair" to help dyslexics function, and it makes each letter significantly unique. However, there is no evidence that it aids reading.
The typeface of Dyslexie was created with the notion that many of the letters in the Latin twenty-six lettered alphabet are visually very similar, thus more confusing for people with dyslexia. Dyslexie puts more emphasis on the parts of the letter that are different from each other.
Christian Boer created Dyslexie in 2008 while he was majoring in graphic design at the University of Twente. After struggling with dyslexia for much of his life, he decided to design a typeface that would make it easier for people with dyslexia to read.
In an interview, Boer stated that he came up with the typeface after a hard final he was studying for. Its creation was an attempt to keep the characters from appearing to spin around, a symptom often reported in dyslexics. Boer related this to the way most people think in words: dyslexics cannot stop seeing letters differently just as non-dyslexic people cannot stop thinking in words.
Dyslexie uses a heavier line thickness to emphasize the bottom of most characters. This is to try to 'anchor' the letters since some people with dyslexia may see letters either moving or in three dimensions. Since dyslexics tend to get b, d, p, and q mixed up, it also emphasizes a slight slant downwards on the curvature of the letters. Letters such as c or e may gape slightly more, or slump slightly in one direction. Also, in letters such as n or h, the font slightly elongates or diminishes the stem on the letters. So the letter h would have a longer line, and n would have a lower line. In addition, the font also thickens or bolds capital letters and punctuations, so that it is easier to identify when a sentence starts or ends.
A student thesis by Renske de Leeuw of the University of Twente found Dyslexie had no statistically significant effect on reading speed or error rates. What differences there were fell short of statistical significance and were both slightly positive and slightly negative. Tests compared text set in Dyslexie with text set in Arial. Sample size was 43 (21 dyslexic readers, 22 'normal' readers) – low in statistical terms. The study's conclusion states that further research needs to be done.
There are other fonts designed to help dyslexics, including but not limited to Write to Read, Read Regular, Lexia Readable, Sylexiad, and OpenDyslexic. Only a few, like Dyslexie and Sylexiad, have had any study carried out on them (both theses with statistically small sample sizes).
No research to date has found a statistically significant beneficial effect on reading for dyslexics from any font specifically designed for dyslexia.
Using a specialist font is just one of many possible dyslexia interventions.