As ronjazz has said, there are several great blind musicians. Ioana Gandrabur is a good one I remember (search youtube).lanten77 wrote: 1. Should I be able to play securely/confidently/accurately when I really can only see my left hand POSITION, and not each string and left hand finger placement individually).
Yes, I only consider a piece ready only when I can play it with closed eyes. But I do use to watch my hands sometimes when learning, to visually check some positioning inconsistency. I also like to use a mirror during initial practice. Maybe you can use a mirror to help you too. You can also record yourself in video to check overall posture and so on.lanten77 wrote: 2. Should I be able to get used to playing with that restricted view?
Check youtube for Eduardo Fernandez or Stefano Grondona, for example, and you will see they normally do not look at the fretboard. My former teacher recommended me practicing without looking at the guitar all the time.lanten77 wrote: 2. Do any of you more advanced classical guitarists play without looking more toward the front of the fretboard?