https://en.wikipedia.org/wiki/OpenDyslexic>Scientific studies
Two small studies have investigated the effect of specialized fonts used with students with dyslexia.
Rello and Baeza-Yates (2013) measured eye-tracking recordings of Spanish readers (aged 11–50) with dyslexia and found that OpenDyslexic did not significantly improve reading time nor shorten eye fixation.
In her master's thesis, Leeuw (2010) compared Arial and Dyslexie with 21 Dutch students with dyslexia and found Dyslexie did not lead to faster reading, but may help with some dyslexic-related errors.
The British Dyslexia Association recommend “plain, evenly spaced sans serif font such as Arial and Comic Sans.
Alternatives include Verdana, Tahoma, Century Gothic, Trebuchet”.
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>>'but may help with some dyslexic-related errors.'
To be precise.
Edit: Add >> Dyslexia : https://en.wikipedia.org/wiki/Dyslexia
For a more complete understanding of the reading disorder.