I purchased a pair of prescription progressive dark glasses. When I picked them up, they seemed OK.
Almost immediately, I went out of town on vacation for a month and used the glasses only for reading outside by the pool. When I got home, I tried them a couple of time for distance vision and they didn't seem right. However, I did not think to take them in to complain until after 60 days. After the 60 day return period, I had them checked by my optometrist who told me they were defective in that the reading portion of the lenses comprised the bottom 2/3's of the lenses and the distance portion only the top 1/3.
Thus, when you look straight out (as you would to see distances) you are actually looking through the reading lenses.
I discussed this with the manager of the vision department at Walmart who told me that the lenses were not defective because some customers like the wear their glasses set up that way. (I thought that argument was ridiculous with dark glasses because the only way to see distances is with the glasses hanging off the end of your nose, which means they would provide no protection from the sun.) In any case, since the 60 day period had passed, she said she could do nothing for me.
Product or Service Mentioned: Walmart Manager.
Monetary Loss: $200.