Your Kobo eReader has a font called 'OpenDyslexic' that may help dyslexic readers.

Notes:

• The OpenDyslexic font may not work in some eBooks or languages.
• The OpenDyslexic font does not work with PDFs.

To use the OpenDyslexic font:

1. While reading, tap the middle of the screen. The Reading menu will appear.
2. Tap the font icon at the top of the screen.
3. Beside 'Font Face', tap the  drop-down menu.
4. Tap OpenDyslexic.
   The fonts in your book will adjust to the OpenDyslexic font.