Lenscrafters is telling me that with my prescription (OD -7.50 OS -9.00) that they don't recommend semirimless frames because of durability, they tell me that the rimless bottom half is held up by a nylon string that wouldn't last with such thick glasses. Now, I've seen coke bottle lenses in semirimless frames that looked to me like there was a flat metal wire in the groove at the bottom of the lenses, and these glasses were quite durable, so my question is, does this flat metal wire design have a name so I can ask for it? Thanks. Sue [email][/email]