Kimberly at the optometry department was amazing. Not only is she knowledgeable about glasses and lens(since I have bad vision and require thicker lenses, she advised that I choose a specific type of frame so my lens don’t stick out and aren’t too thick) but she also helped me save money with my insurance. She was such a pleasure to work with that I’m giving 5 stars just for her! You don’t need a Costco memebership to get your vision checked by the Optometrist, BUT you will need a Costco memebership to buy glasses and contacts. They accept certain insurance and vsp is one if them. However Costco is out of my network. There isn’t a huge selection of frames to choose from, and there’s only a handful of name brand frames but I’m not super picky.