The other day I had to get new glasses, and I braced myself for my lenses to be incredibly thick and expensive to boot again - but then I had them made, they look normal, and they barely cost me a Benjamin. Clearly, the optometrist crowd has made some major developments in the past decade or so, which leads me to ask - if you're working in an industry most people don't really think about, what's happened in your space in the past ten years?