Prescription Eyeglasses

Is it smarter to buy frames for glasses in advance rather than buying the entire package at once? I want to buy frames downtown to try to save a little money ... Thank you!

Certainly. If you try to buy them while you work eye exam and all the details you'll probably end up paying more than you want. Sellers tend to be so nice and you see all these frameworks around you so you lose sight of what you spend. Bring your own and it will relieve all the pressure and concern about where / How much is.