I've become more and more interested over the years in computer usability for the blind and vision impaired. I still feel like there's a lot of room to improve these things.
Being able to navigate a web page and interact with it just seems like it would be so much more difficult without the ability to see it.
Don't waste your time becoming "interested". Just start doing it. Learn to put your OS in blind person mode, and spend an hour learning how to use it. It is amazing how fast and easy it is to fix various problems. For instance, in HackerNews the upvote/downvote links are voiced as "link link" on my Mac. That is not very helpful to a blind person. A trivial change could make that voiced as "link-upvote, link-downvote".
Being able to navigate a web page and interact with it just seems like it would be so much more difficult without the ability to see it.