Hi, my GSD was diagnosed with pannus at 7 yrs old. After starting dexamethasone (steroid) drops it got better. Then the vet started her on tacrolimus to give her a break from steroid eye drops and it has come back. How long and how often a day have you given the steroid drops? Has anyone experienced the negative side effects of prolonged steroid use? How did you figure out how to adjust the dexamethasone regimen? For how long can a gsd tolerate dexamethasone? Thanks.