@m @icedquinn floaters? Yea it's a kind of defect in eyes but they are common enough to be considered pretty normal. From a quick google search because I'm too lazy to type:

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.

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 immediate eye health professional attention.