I've never used any smart glasses, but I do wear prescription glasses ("dumb" glasses?); don't these smart glasses products all clash with the field of prescription lenses? I mean, either they each have to provide the entire possible range of correction profiles, for use instead of what people wear now, or they need to be attachable/overlays for regular prescription glasses - which is complicated and doesn't look like what the providers are doing ATM. Or - am I getting it wrong?