I think I tore my old contact and it is still in my eye, but I'm not sure. Now, I am wearing another lens over it and for some reason the vision is weird. It is sorta blurry/yet I can see well. Also, it is sort of a slight double vision. Is there a piece of contact under my contacts? What should I do? How can I tell if there is, if I only saw what may be it once? If it isn't, why is my vision like this?