A bit of advice to anyone who is considering buying new eye glasses or any other form of optical wear in Thailand. I will relate my experience. One year ago, almost to the day, we came to Chiang Mai and sought out a company who had reasonable feedback on this forum and other forums for new glasses for my wife and I. That company was OPTICAL CHAROEN. The branch was 142/1 Changklan Road, Chaing Mai (near Kalare Night Market). We went in there, had our eyes checked and explained to the staff who were very keen to ply us with freshly squeezed orange juice and big smiles, that we wanted glasses that had lenses that would not scratch with frames that were very resilient. Our smiling Optician produced some very expensive frames for me that came with his company's guarantee and his personal guarantee that they were "unbreakable" . He proceeded to twist, bend and virtually jump on the frames to show me they couldn't be broken. Gullible me believed him !!! We paid a very large amount of baht for my frames with progressive lenses which added greatly to the price. My wife's glasses also pushed the bill up to a considerable amount of money (from memory, around $780 AU at the time). We could have bought glasses at home cheaper but were prepared to pay the high price for the "unbreakable" frames. NIne months later, the unbreakable frames broke! So knowing that we were returning to Chiang Mai, and remembering the personal guarantee of the optician and the guarantee from Optical Charoen that these were in fact, unbreakable glasses, we returned with the said glasses. It's amazing when you go back with a problem how quickly attitudes change and people start ducking and weaving, trying to find cover. When my broken glasses were shown to the resident optician (not the same one as the previous year), she explained that the frame was unbreakable everywhere EXCEPT the part that broke, and that their guarantee did not cover the part that broke, which happens to be the central joining piece between the right & left eye frames, that piece sits over your nose. We were told that the quality frames were made in Itialy and when I suggested that Optical Charoen replace the frames and send the broken frames back to Italy, it was met with deaf ears. I seriously doubt they were made in Italy, more likely made in China where most frames are made these days. 15 minutes,of at times, heated debate and the optician, the representative of Optical Charoen, told me to come back same time tomorrow and she would have the technician repair my glasses and "they be like new". This I begrudgingly accepted. 24 hours later my glases appear before me in a fancy case, supposedly repaired. I took them out of the fancy case, put them in my hands, bent them slightly, and the super glue that their technician had used, failed miserably. At that point the optician took one step back and said "sorry, no help. Cannot give refund, and cannt replace". So, as far as Optical Charoen is concerned, I have just been dropped like the proverbial "hot spud" , The glasses, last time I saw them were on the floor at Optical Charoen, 142/1 Changklan Road, Chaing Mai. I will never, in a million years, step inside their door again. Their staff are highly trained at selling things to you and just as highly trained at dodging their responsibilities, their guarantees and any undertakings they gave when they sell the glasses to you. I fyou go in there be warned, it's on your own head.