All I can say is my ON affected my right eye and I had stenosis and 3 stents placed on my left side, that little stringbean of a jugular that it was, the right side was significantly less in stenosis/collaterals etc and was substantially larger in volumetric movement of blood than the left.
So if I had to guess, I'd say the significant stenosis/lack of flow on the left side coincided with the ON on my right eye. The other physical type symptoms I had cannot be characterized as left/right.
RRMS Dx'd 2007, first episode 2004. Bilateral stent placement, 3 on left, 1 stent on right, at Stanford August 2009. Watch my operation video: http://www.youtube.com/watch?v=cwc6QlLVtko
, Virtually symptom free since, no relap