Ok, I've read a few stories in my research about this random blue dot phenomenon, but tonight, read them all, as this is literally the ONLY thing I can find that doesn't talk about floaters or seeing different colors, blood sugar etc. It sucks that no one has really found answers. I too have 20/20 vision, blood sugar is great and no migraines. I've been seeing this blue dot for about 6 months now. Started about once a day a few times a week to multiple times a day now almost every day. I'll be following, because maybe, just maybe, one of us will find out what tf is going on!