I've had ocular migraines since I was a teenager. After having OHS one and a half years ago, I experienced, and still experience, many visual anomalies. I've experienced everything from the seemingly (and shockingly!) common loss of vision in one eye for several minutes, to the 'fireflies', to the 'zigzags', to the aura's, etc. everyone notes on this topic. Again, being familiar with experiencing ocular migraines for many many years of my life, I am quite confident that the other anomalies are NOT specifically dismissible as ocular migraines.
I suppose it is comforting to know that others have experienced these things and I hear few reports of anyone permanently losing vision in conjunction with any of this, but its still concerning that such a large number of us (is it enough to say - the majority? I don't know - again, a poll would be interesting to see!) experience this and there is no answer. I believe the answer we all get of 'ocular migraine' is a result of doctors not being able to diagnose it as anything else, and in the absence of having something else known and published to pin it against, the 'fibromyalgia' of vision problem diagnosis seems to be ocular migraines.
I have also noted an extreme increase in the number of vision 'floaters' I have post-op (they weren't immediately apparent, this happened primarily over the 6 months initially post-op), and I also experience a 'halo' effect around bright lights against a dark background (which certainly was never there before OHS). I've had my eyes checked every which way possible, and the advise I'm given is that my eyes appear to be 100% healthy - most doctors dismiss it as being tired or dry eyes. Laughable, really, but only if it was funny. Not from 'where I see it' - no pun intended.
The best cure I've found is to put my efforts toward the things I enjoy and try and forget about the little hiccups and comparisons to before and after - at least we're here!