So Just How Do You Authenticate Vintage Chanel Sunglasses 。Gorgeous AUTHENTIC oversized Chanel Crystal Sunglasses. I love, love, love these, just in the market for something new. Let me know what you have. These were purchased from another posher, who told me the lens is prescription. I took them into a Walmart vision, where they confirmed it to be a reader lens for someone who was both near and far sighted. I have perfect vision and had no issues wearing these. Obviously, if you wanted to change the lens, you could. I have priced them accordingly. The only callout is a slight scuff/spot on the bottom lens, doesn\'t affect vision or \"look.\" The listing includes the Chanel Sunglasses EUC case, and I will include a lens cloth. Make me an offer!