@pah17 Hi there. I had an ultrasound to check for GCA right after my PMR diagnosis but because I am already blind in one eye my doctors were extra careful about the potential risk to my remaining eye and started me on 60mg of prednisone and performed an artery biopsy out of an abundance of caution. Thankfully they have officially ruled out GCA, but I'm glad we went the aggressive route for peace of mind. Wishing the best for you!