I Just Started To Have What I Called Kaleidoscope Vision,

I just started to have what I called kaleidoscope vision, like a crescent moon to the left of my left eye. It happened on my way home yesterday, then went away. It came back this morning, but the moon waxed, meaning the black and white kaleidoscope seemed to spread towards the middle of my eye. I felt sick to my stomach, and after about ten minutes it went away.