This is a good option if:
Immersive Reader in Canvas: How do I use the Microsoft Immersive Reader in a course?
VitalSource: Can I have the eTextBook read aloud to me?
Video Instructions on Using Immersive Reader
You can also download files from Canvas in alternate formats where you can listen to them on various devices or translate to electronic braille. To use audio, download an alternate format of a file and use a text-to-speech program to read the information aloud to you. Many computers and smartphones have screenreaders already built into their systems.
A screen reader is software that individuals who cannot see use to interact with the computer, especially the operating system. A screen reader narrates the text of all menu options and programs out loud to the user.
Windows/Microsoft products: Narrator can be activated using the keyboard combination of "Windows key + U." To effectively navigate the computer when Narrator is running, refer to the Narrator Command List
Here are a variety of tools built into the Mac OS for those with visual impairments. In iOS, one can turn your device into a magnifying glass or simply magnify the screen with display zoom.