After being on prednisolone for so long I suppose I should know the answer to this but would welcome advice. I have PMR/GCA and have reduced very slowly since a flare 18months ago and have now reached 10.5 alternating with 11mg daily hoping to drop the 11 next week and embark on 10.5 to 10. However, this morning I had a curious visual sensation, like a prism moving at the bottom corner of my right eye. When this persisted for 10 minutes or so I thought I should get it checked at A&E remembering that you don't mess with GCA. But by the time I had had a quick shower -another 10 minutes say - it had faded and has now - 2 hours later- gone. I did notice while showering that the area above my left (i.e unaffected) eye felt tender. My question is should I stay at 11mg, where |I have been problem free, for a while or go higher? I'll try ringing my GP for advice but don't think I'll hear anything today. Thanks everyone.