Thank you for this information Dennis Lembrée.
For the underlined text, you can find some informations in the resources above.
These resources are not focused on underline, but it is part of these recommendations because of the results of different studies and feedbacks from dyslexic people, like me.
OverviewPeople often ask what is the best font to use for people with dyslexia. But that is the wrong question…www.dyslexiaaction.org.uk