I'm 16 and I have eye floaters in both eyes. The eye doc didnt see anythimg and wasnt worried. What could cause this? I have perfect vision too.

Cells or Vitreous. Floaters are either comprised of cells or components of the gel like substance inside the eye called Vitreous Humor. What you are actually seeing is the shadows cast by the floaters on your retina. I am glad you have seen your eye doctor. Here is a good website that explains it further: http://www.webmd.com/eye-health/benign-eye-floaters.