This is how thick the edge of the glass can be on a -20.00 prescription glasses.

Image from i.redditmedia.com and submitted by rosarosi

image showing This is how thick the edge of the glass can be on a -20.00 prescription glasses.

daveminer1496 on June 10th, 2017 at 10:24 UTC »

Are they bullet proof too?

thereisonlyonereturn on June 10th, 2017 at 10:25 UTC »

We're gonna need a few more angles

Thanks_Obama on June 10th, 2017 at 10:52 UTC »

Would this person be practically blind without the glasses?