Hehe, I’ve always had them… but never bothered to search for an explanation. Today I found a link (on digg.com) to an excellent Wikipedia article explaining what they are and why they appear.
(Floaters are blurry, dark “shapes” that can be seen before your eyes sometimes. They float around and can’t be focused on. Read the article for more info!)
Floaters:
http://en.wikipedia.org/wiki/Floaters
I always thought they were like small fragments of dust that had got caught in the fluid covering the eyes, floating around in it. Now I got an explanation. Thanks! :)