If you don't have medical insurance, this is another way you can save money, thanks to the discounts that Costco offers. Unfortunately, though, you can't buy prescription glasses or contacts there ...

Costco eye exams from local independent doctors are a great value, but should you buy glasses there? Our author says no -- ...

We’re testing Costco Optical, which now offers single-vision prescription eyeglasses available to order completely online (with a virtual try-on option) and free in-store adjustments.