Eric: Most of my glasses have a 20 mms. bridge. My first on line
experience was with goggles4u (posted here). At that time I asked
myself: What is a couple of mms.? Sure 18 mms is the same as 20...
Well, it is not. 20 mms. is far more comfortable for me than 18 mms. I
have recently bought rimless glasses from optical4less. They are 19
mms. bridge They are OK. They are very good glasses. But I still think
20 mms would have suited me better. This year I bought another pair
from G4U. They are 20 mms but rimless. They are very good glasses
also. But they have screws to fit the lenses to the frames and this
screws take up some space in the bridge and sometimes they touch my
forehead which is not serious but not so comfortable either. Maybe it
is just that I wear my glasses very high up my nose. The glasses I got
from optical4less are also rimless but fitted without screws. This
system is much better for rimless frames.
GG