Fun fact: This glasses "lens" is actually two lenses stacked together. (Disclaimer: this fact is "fun" to learn by reading about. It's not so much fun to learn by having a lens fall out of your glasses while the optometrist is closed for the holidays.)
![[photo: It's two two two lenses in one]](https://lahosken.san-francisco.ca.us/importable/2020/gls_lens.jpg "It's two two two lenses in one")
![[photo: Face of someone not having fun]](https://lahosken.san-francisco.ca.us/importable/2020/gls_face.jpg "Face of someone not having fun")
