This is fascinating! The Braille Institute has developed a font - free to download - that's designed to be clearer for readers with lower vision.
An example of one of the aspects of low legibility that they tackled attached.
It's named Atkinson Hyperlegible. Atkinson was the Institute's founder - https://en.wikipedia.org/wiki/J._Robert_Atkinson
Here's where you can read about the font and download it: https://brailleinstitute.org/freefont
Via @tombofnull