They put me varilux essilor crystals, charged me a...

They put me varilux essilor crystals, charged me a whopping 1,100 euros, and gave me others for sunglasses, and be satisfied, the problem has arisen now, after 20 months, I have the crystals completely scratched, according to the optics to clean them badly, it depends, I've worn glasses a long time ago and it never happened to me, I attribute it to that they are insufficiently hardened-protected, besides they get dirty a lot and it costs a lot to clean them.Conclusion is not worth spending a pasture for that last, does not come to an account