Ok, We've had quite a few patients come in to get new glasses who have gotten their previous pair somewhere else. Some of them will say they got them at Lens Crafters, Walmart, Sears, etc. There have been numerous times that we haven't been able to identify the progressive based on the laser engravings on the lens, we've used the newer progressive identifier book and older ones, but these markings are no where to be found.

My question to all of you is this...Do you know what some of these box stores are using for there progressives? It would help a lot to know what they've been in, in case they want to keep the same prog. or what to put them in if they are switching.

Any ideas???