Need thinner sunglasses lenses!

[glass frame]

I have a really strong prescription, so, those "coke-bottle" lenses are always my company in the old days, here is my Rx, OS is -9.00 and -8.50 for OD, the lenses are really thick, I want to know if there are special lens materials which can make my lens much thinner, as it's difficult for me to order prescription sunglasses with cool plastic frames, and how much should I pay for them?
Thank you!