I ordered two pairs of progressive lens prescription glasses, approximately $120 each. They arrived with some sort of embossed symbol on the lenses, within the field of view. Took glasses to Wal Mart optometrist who said lenses were not properly made, took to Costco optometrist who also said lenses were defective. Called great eye glasses customer service. Curt employee informed me that Costco and Wal Mart were wrong and stamp on lenses was normal. That they could not take glasses back. I am out about $240. Stay away from these people.