The use of larger familiar fonts such as sans serif fonts, and enough white space, may reduce the reading load for people who have low vision or dyslexia.
People who have dyslexia describe seeing text “swim together” on a page (the compressing of one line of text into the line below). They often see text merge or distort.
Sans serif fonts are made up of mainly straight lines. Sans serif fonts are easier to read in continuous text. On the other hand, serif fonts have short strokes that project from the ends of the main stroke that make up a character. Although serif typefaces often work well in headings and personal stationery, they can be difficult to read in continuous text.