I have Common Variable immune def. with multiple symptoms. I have had several TIA's and one stroke. Blood pressure is fine. I am having/seeing white lights on the outside of my eyes. I had them checked at Kresgy eye Institute because I was seeing black floaters. My eyes are ok and No retina detachments. Could the white lights be related to TIA's or stroke? I also have a greenfield filter in my groin, but my clots are still getting thru Thanks for your time, janeStewart.