Best frame material for frameless eyeglasses!

[new eyeglasses]

What kind of frame material is the best choice for frameless eyeglasses, I found that the nuts can get loosen easily and the lenses are bent up by some pressure, and what about the coatings, I need it for computer using!
Waiting for your kind answer!

[buy reading glasses]

Will you fill my prescription to my frame? My frame is full frame wire type. If so - I would like the thinnest lens (Hi Index) I can get with both progressive and transition (grey) options. My prescription is Sphere Cylinder Axis Add Prism -500 -75 75 225 -550 225 What would the cost be if I get two frames filled? who can help me? thank you!