Joanna, What a win to get a permanent improvement in vision! And without laser surgery. The HBOT doctor did tell him about this but he said his vision would return back to normal within 3-6 weeks after treatment. Interesting about the doubling of capacity where you went; they seemed pretty busy where we went too. I get the impression from the doctors we've spoken to that this is becoming a much more utilized treatment than it has been in the past. Connie.