Eyeglasses should feel comfy and secure—no slipping, no pinching. The frame should sit gently on your nose, with the temples resting comfortably on your ears. Your lenses should align with your eyes, and the fit should be snug but never tight, so you can wear them all day without discomfort.

D, or Pupillary Distance, is the measurement between the centers of your pupils, typically in millimeters. It's an important measurement when buying eyeglasses online because it ensures that the optical center of the lenses aligns correctly with your eyes, which helps prevent eye strain, blurriness, or discomfort. When ordering glasses online, many retailers will ask for your PD to make sure the lenses are properly aligned with your vision. If you don’t know your PD, you can often measure it yourself with a ruler and a mirror, or you can ask your optometrist for the measurement from your last eye exam.

Nope! You don’t need to buy lenses with your frames. Simply click "Buy Frames Only" on any product page to purchase just the frames.