I am writing because I'm concerned about my mother-in-law's new vision issues. She is 80 and was diagnosed with PRM several years ago and GCA two years ago. She has been on prednisone since the GCA diagnosis, but she isn't sure how much she is currently taking. (She says seven tablets a day, for what that is worth.) She suffered some permanent loss of eyesight in one eye before the GCA diagnosis and has had trouble with that eye (watery, scratchy) off and on ever since. But in the past few weeks her vision has become blurry. She is under the care of an eye doctor, who has given her new drops, but she says that has not helped. I am wondering if this could be a flare up, even though she doesn't have other symptoms. Obviously the big concern is further loss of eyesight. She thinks it's just a side effect of prednisone, but it seems strange that this would suddenly crop up when she hasn't changed her dosage in a while. Can blurry vision alone can signal a flare? Any feedback would be welcome.