Comment by superkuh

I'm shocked at how thin those lenses are. I'm at -11.5 diopter and my edges are already >1cm thick. It sounds like it's one lens set entirely inside another one? Even using 1.8 index material the thinness is really impressive. I bet the chromatic abberation isn't, though. It's not 1-to-1 but generally the higher the refractive index the lower the Abbe number, the more colors get split apart.