<human>: Can you succinctly summarize the text in 1-3 sentences?

Hi all! I am an aspiring Computer Science student and I think I may have stumbled upon an innovative idea for testing and distributing assignments to visually impaired individuals. The only thing is, I'm not sure what kind of practices are in place in schools currently. So reddit, my question to you is, what is usually done when a visually impaired student (completely blind, partially blind, etc.) needs to take a test or complete an assignment? Are instructions read verbally? Does braille need to be made for all tests and assignments? Please let me know because I would really like to help this demographic out if at all possible (and hopefully for free)! Thanks in advance!
<bot>: I need to know the current practices for testing visually impaired students in various subject areas like math, science, history, etc.