These glasses were purchased at the Ogura Megane store in Shinjuku, Tokyo. They currently have lenses for presbyopia. The key feature is the thin black frame with a dark red accent on the lower edge. The frame is thin, and there are no markings about the material. I believe they are an original Ogura design. They are not wide enough to accommodate progressive lenses. Please use them with lenses for nearsightedness or presbyopia. I don't think there are any problems. The current distortion is due to the adjustment to fit my ear position. Please have them adjusted to fit you when you use them. There is no case. #Kei'sHouse #Kei'sGlasses