Floaters are little spots or streaks that can look like flies or cobwebs in your vision. They move when you move your eye and most often continue to drift. Some floaters are completely normal at any age, especially in short sighted (myopic) people and the can occur even in children. A sudden increase in the amount or size of floaters particularly if accompanied by flashes is important to get checked.
Floaters look like they are in front of your eye but they are actually floating inside it. The eye is like a round camera with lenses at the front and the film of the camera at the back. The main chamber of the eye is filled with a gel called the vitreous. Floaters are debris in the vitreous.
They may look to you like black or grey specks, strings, or cobwebs that drift about when you move your eyes and appear to dart away when you try to look at them directly.