I'll buy a spectacle frame myself and go to the optical shop. Can they match lenses? Myopia.

Generally speaking, it's ok. However, the store will remind that it is irresponsible for quality problems such as welding and deformation during assembly and adjustment. Suggestion: It is best to buy frames and lenses in an optical shop and assemble them. In case there is a problem with the frame and lens, it is easy to solve. Finally, the overall bargaining. This will minimize the risk to customers.