I am visually impaired not completely blind, but almost, I don't use a screen reader, but all you do to help people that use screen readers, will also help me!
Most important for me in the web interfaces is that the sites are build on dynamic design, so I can use the zoom function in my brower, and that you don't use any javascripts or other kinds of "black magic" to control what colors I have on my screen... The dark theme I like wery much!
(and English is not my first language so sorry if there is to many typhos)