Why Do "Bad" Floaters Happen In The First Place?
It's possible to see tons of "insects floating in your eyes" when the gel like vitreous breaks up into smaller
clumps and moves around in your vision. With time, the vitreous gel that fills up the back of our eyes changes from
being like jello to a water like material. Dark strings moving in your eyesight happen when small pieces of
vitreous gel separate and drift through your vision.
The "worms in your eyes" that are shifting back and forth are most visible when peering at
the clouds or blue skies because they are in fact due to shadows on the back of your eyes caused by tissue moving
in the vitreous gel. Black specks or spots that travel in straight lines randomly are pieces of tissue floating
through the vitreous cavity.