Slammr (imported) wrote: Sun Oct 19, 2014 9:06 pm Over the years, I've had temporary, limited, obstruction of vision in both eyes, accompanied by shimmering halos. It goes away after 15 - 20 minutes. I discussed it with my ophthalmologist, and he said it was probably an optical migraine, which, in my case, isn't accompanied by any pain. They don't know what causes them.
This sounds similar to what is happening to me.