I am a retired pilot, not a doctor, but I would just mention that one of the more disquieting symptoms of Classical Migraine is 'areas' of memory failure. However, these usually occur after the 'Aura' (The flashing vision and patches of blindness) - so I'm not sure if it could be one and the same thing.
You're going down the right route having an MRI. You must press for consultation with a Neurologist. Needless to say, the medical should be suspended for the time being.
In the mean time, although the flickering seemed to be in the right eye, if it occurs again, be absolutely sure to check if it is in both eyes or only one. This is very important. The kind of patterns may be of help to a specialist. A Sawtooth Zig-zag - decreasing in size from one end to the other, would be a known symptom, and therefore useful information.
Although there's no hard science, I have a very good reason for asking. Have you binged on chocolate recently?
Last edited by Loose rivets; 24th Dec 2010 at 21:05.