Who can do me a favor with my special eye wears?

[glass frame]

It is really a tough task for me to pick up a pair of perfect eyeglasses, as I have a really big PD, 71mm! Many local optician cannot provide me such size, that’s why I want to try online site, And I want to buy PC lenses, as they are more durable and anti-scratched than ordinary lenses, but as I had a really strong prescription, my optician told me that it was not suitable for me to order such lenses, anyone can tell me what can I do now?