Is this eye cancer?

So I have had this lump in my eye for about two years maybe longer but noticed it then. It moves around if pressed and it is not painful at all. It is not necessarily squishy but a hard smooth mass, and I can also press it behind my brow bone. I have no blurry vision but I have no way of telling since I do wear glasses but when I am wearing my glasses my vision is not blurry. I also have a smaller one in my left eye as well.  I really hope this is not cancer or that I will have my eye removed.