Cindy - I hope your HBO treatments are going well. I did 30 dives in 2004 for a tooth extraction and did 60 dives in 2007.My eyesight in 2004 came back to normal after a few weeks but in 2007,one eye came back to normal and one didn't.I'm guessing it was because I had the maximum allowed that caused that.My oral surgery in 2007 was rather extensive but the HBO did help it heal completely.My biggest issue with HBO is death by boredom !!