Hi Sue, My son is 44 and also diagnosed with MAC which is being treated by the amazing doctors at Mayo Jax. He has Alpha1 which effects his liver and lungs. In June of 2017 his diseased progressed to end stage liver disease, they could not transplant at that time due to the MAC. They did the same studies you mentioned to see if it reacted to the 3 antibiotics. It did so they started the therapy at the end of July 2017. By December the cultures where negative so we were able to get him on the transplant list in February. He will remain on the three antibiotics at least one year after the first negative culture. In the beginning his white count fell low so they have been giving him Neupogen injections to boost the counts. The low counts are a combination of the antibiotics and liver failure so they lowered the dosage of the antibiotics a little. His eyes are also checked every 6 months to watch for any changes the antibiotics may create but so far no issues there. So about 14 months after starting on the MAC treatment it is under control, no eye issues, continuing the antibiotics and waiting for a liver that is a match.