I used to wear mine when I would flyfish near dusk. It really helped me tie those tiny flies on in the dark.
I used it previously when I worked fixing processing equipment in photo labs. The really weird thing there, is I had a hard time seeing what I wanted to see, because the thing always pointed slightly down when I wore it. Then I dropped it one day, after I had used it for about a year, and "broke" the head. But then it snapped back down in place again. It was only then that I realized... /ubbthreads/images/graemlins/banghead.gif
It had a tilt head on it the whole time, but honestly, it wasn't marked on the package, and I never saw it. LOL
It's great... I still use it from time to time.