Comment by red_admiral

I don't have any resources specific for blindness, though I know a few people who are blind and still have a great quality of life. I have my thoughts on the "disability is not a disadvantage, just another way of being" crowd because that doesn't work for my own situation, but for blindness, I can see the point they're making.

There's that old study that looked at what kind of parents give their children the best start and success in life, and after some factor analysis, the single most important attribute was "loving". Disability doesn't change that.

You might find Matt Might (of "illustrated guide to a PhD" fame) comforting on the topic of having a disabled child in general: https://matt.might.net/articles/tenure (despite the title this post is not primarily about tenure).