Hoya and Essilor are the most interchangeable designs, ( generally). Zeiss is a different animal. It’s much easier to switch an E design for an H design, going to or switching, than either direction...
Roll and polish, (even just rolls) look hideous. When I got requests (because of previous use) of rolls, I hade a frame with a -10, one lens rolled and one with a hide a bevel with edge tint, it was...
Believe it or not, there was a time, some OD’s didn’t give a rip if you didn’t buy glasses from them. They gave solid advice, offered best design options on their patents visual needs, and X was the...