Meno,
Your eyes don’t give off any particles, and neither do cameras. Both things see by collecting photons that bounce off an object onto them. If no photons are bounced off the object then all you would see is dark. You wouldn’t see anything.
Bouncing a photon off of an object will change either its position or its velocity. On a normal sized object this occurs as well but the effect is just too small for humans to notice. On the quantum level it becomes much more significant. It is therefore impossible- even in theory- to ever know the exact velocity and position of a particle.