Thousands of Miles

I stood this evening with a pair of binoculars staring at the moon. These were very nice binoculars. Each eye piece focuses independently. When I had taken my time to focus the binoculars as well as I could I stood in the doorway with the binoculars to my eyes staring at the moon. The moon craters and some topography seemed fairly apparent. How can this be? The moon is thousands of miles away...thousands. How far can one really see? And why are we unable to see further? There is something out there that can see farther than I can. The binoculars prove that our eyes are not working as well as eyes somewhere else. Who has eyes that strong, and more? It seems we should be able to see this far, see this well on our own - without binoculars, or contact lenses. But then, why can't we see the nose on our face?