I suddenly had visual disturbances, having had a previous T.I.A. and stroke I was obviously worried but this was different. With the T.I.A. I went blind in one eye for 5 minutes with this disturbance I saw shards of crystal clear glass in a zigzag pattern crossing my eyes whether they were open or closed ,felt quite nauseous but with no pain or headache. This lasted for approx. 20 minutes .Having researched on the internet and having seen my G.P. today it has been diagnosed as migraine aura. This seems to be a very rare occurrence after catheter ablation and I was wondering if any of you have had a similar experience or knew of this condition ?