Do not get an eye exam or buy eyeglasses at Costco 3000 Middle Country Rd, Nesconset NY 111767. I had an exam at the optometrist office in Costco and she prescribed a prescription that was too strong. Two pairs of glasses were filled and need to be redone. Then the opticians told me aviator type glasses are not recommended for progressive glasses...so those had to go back. Then the optician who was very rude (a porky man whose name I do not want to remember) told me I can not read through my sunglasses because they are tinted dark. He said if he wants to read something outside such as a menu, he uses his clear glasses. I never heard anything so absurd. Costco on the internet said they used the best progressive lenses so I gave it a try. I wore these glasses for a few months suffering and struggling with them. I went back to Davis Visionworks and I now have two pairs of glasses that work fine. DO NOT USE COSTCO OPTICAL IN NESCONSET, NY.