This will give you some idea of what my uncorrected eyesight is like. Without my glasses the world I live in is all soft and blurry.
I am nearsighted. I propped my glasses on top of my head while I fiddled with my camera, changed my settings and light meter and read all the fine print on the buttons, dials and menu screen. Then I put the camera to my eye, focused (I thought) and snapped the pic. Oops.