I wish this forum's search feature was more user-friendly. This topic's been well covered multiple times before.
I am nearsighted, farsighted, have astigmatism and need high-index lenses, 'cause I'm blind as a bat.* I love Costco Optical, because I want skilled interaction to make sure the fit is exactly right. Costco offers convenient access and a great satisfaction guarantee. Their prices have recently come down even more. I needed to use up some FSA money at the end of last year, so I decided to buy an extra pair of glasses. With the multi-purchase discount, I got three pair and still had money left over, which I promptly spent on another body part, hee.
Then there's the whole Costco pays their employees a living wage thing, which I totally love.
Take good care of your eyes, people! Good visual health is priceless.
*Plus my corneas are too thin for laser eyes, or I'd have done that in a heartbeat. Oh hell, I may as well admit I have glaucoma, too. At least my eyeballs are a pretty color and I can see reasonably well with glasses.