I too have o negative blood type. The same as Orissa and clever_sky, and I must admit that there have been times when my daughter would say , mama I just saw lizard in your eyes. 😆
I see light in the corners of my eyes quite a bit.I see gold, silver, white, and it looks like an electric blue. Sometimes I will see sparkles of light , and sometimes
flashes of light. I can see doorways and various things outlined in white light, I have noticed I can see out lines of white more depending on the moon signs. 🙂