Add me to the list. I had an injury to my right eye, and now have very little sight left in that eye. I shot right handed at the time.
I quickly became left eye dominant, and decided to make the switch to left handed.
I did this at the age of 65, and it was extremely awkward at first.
But; soon I realized that I already knew how to shoot, so all I had to do is train my muscles to shoot on the other side. I took it as a good chance to start over, and work on my form as well.
I gap shoot, three under. It was a good move for me, and not nearly as difficult as I thought it would be, after the first couple of weeks.