Floaters
Floaters are tiny specks that can be seen in your field of vision, especially when you look at a light-coloured area such as a blue sky or white wall. They are created when tiny clumps form in the clear, jelly-like substance (the vitreous humour) inside the eyeball. Eye floaters are suspended in this 'jelly', so they move when your eyeball moves. If you try to look directly at them, the floaters may seem to disappear.
Floaters can come in different sizes and shapes. Some floaters look like small dots, while others appear like threads or little hairy clumps. In most cases, floaters are normal and harmless. However, a sudden increase in their number may indicate damage to particular internal structures of the eye. This requires professional attention.