I would like to compare [frame model], with a preference for [a relatively flat front / a front that curves around the sides of the face / still comparing]. Could you show top and side views of the matching model in its normal unfolded state and explain the shape of its front? Please identify any differences between the sample and the supplied model, and separately check whether it can meet my existing optical requirements. This enquiry concerns appearance only, not self-adjustment or functional-performance claims.
