So first of all, do you mean totally blind? Legally blind? What is their vision? 20/200?
I would strongly suggest you live in our world for a bit as you write. This is coming from a blind author. Use a screen reader without the mouse for a week, turn on audio description when watching Netflix, to learn how to describe these things.
As for micro agressions, I don't give those out to writers unless I am co-writing their character or story with them. It is a personal preference of mine.
NVDA is a free screen reader you can try on windows.
$1I've made a resolution that all of my future fiction will feature disabled major or minor characters. If you want to co-write something, get in touch.