During the eyeglass selection process, you will be asked specific questions to ensure the most accurate fit. You will select frames, review lens material and add-ons, and be measured precisely to ensure accurate fitting. If you need more than 1 hour for your appointment, please let us know ahead of time so we may block off additional time for you. All you need is to provide a physical spectacle prescription from your Optometrist/Ophthalmologist at your appointment. You may bring in a valid (non-expired) physical prescription, have your doctor fax or email us the prescription, or fax or email us your prescription.