I have the same disease as Andrew. Well, sort of. There are many variants of retinitis pigmentosa. From what I can tell, I am much further along in my progression for the same age.
This story was a good read and for the most part up lifting. It only really touches on the dark side of blindness, pun intended. When I was diagnosed I found solace in Jim Knipfel's accounts of dealing with RP, the most famous book likely being Slackjaw. Knipfel never pulled punches, he wrote about the raw harsh reality and squeezed black comedy out of it. While everyone around me was trying to be encouraging about my predicament, Knipfel gave validation to how I really felt about RP and could make me laugh about how fucked I was. If you want to see the other side of blindness I recommend Slackjaw, but be warned, it is basically the counter point to this story.