Whether you have a big head or an average one, it can be a challenge to find sunglasses and prescription glasses that fit properly. You know, like when you buy a new pair of sunglasses on the fly in a gas station or discount store, only to find out hours or days later that they don’t pass the fit test. Maybe they rub your ears or slip down your nose … or you just don’t feel good wearing them.

The Fatheadz team is here to tell you, those days are over. We have tips that will make all the difference with your future frame purchases. It’s all about measurements, placement and comfort. Here’s how to pick out glasses that fit, no matter the size of your head.

Measure up. First, you’ll need to measure the width of your head. The easiest way to do this is simply to measure the frame width from an old pair glasses that fit. If you don’t have a pair on hand, measure your face from temple to temple with a ruler. Once you have your measurement, you’ll know what general size of frames to look for.

Less than 5 1/2 inches = Regular Frame

Greater than 5 1/2 inches but less than 5 3/4 inches = Wide Frame

Greater than 5 3/4 inches but less than 6 inches = Wider Frame

Greater than 6 inches = Widest Frame

Check out your pupils. Finding the right frames isn’t just about looking and feeling good. It’s also about making sure your pupils will be in the right place for your lens, especially if you have prescription, progressive or bifocal lenses. If you have too narrow, too wide or ill-fitting glasses, it can negatively affect your vision.

To determine if your pupils are in the correct vertical position, imagine three horizontal and equal sections across the width of your lens. Your pupil should be where the middle and upper third sections meet. Horizontally, your pupils should be in the middle of the lens.

Pay attention to the arms. Also known as temples, the arms on your frames should extend straight back and only touch the side of your head just before reaching your ears. Think of them as giving you a gently hug, but make sure the arms don’t curve too early, or they’ll end up pushing your glasses down on your nose. And who wants that?

Arms that are too tight are not only uncomfortable, they’ll also cause undue pressure to the bridge of your nose, which can result in headaches and sinus issues. And if that wasn’t enough, an ill-fitting arm can cause prescription lenses to be positioned incorrectly on your face, which can negatively affect your vision.

Examine the bridge. The part of your frames that goes over your nose is called the bridge, and it should fit snugly. If it’s too tight, not only will you be uncomfortable, your vision can be compromised. This is because your frames will sit too high on your face. If the bridge is too loose, your glasses will slip down your nose and require continuous readjustment. Most metal glasses have adjustable nose pads, while acetate frames usually don’t. You’ll need to take this into consideration when you initially measure for width, because frames with nose pads will sit a bit higher on your face.

Final tips to consider. So you’ve measured your head, you know your arms are comfortable and your pupils are in the right place. What’s next? Here are some final tips to help you determine if your frames are the perfect fit for you:

  • The frames should not be wider than the overall width of your face at the temples.
  • The top edge should be no higher than the line of your eyebrows.
  • Make sure the lower edge does not sit on your cheeks – if they do, it can rub your skin and cause irritation.
  • If you can fit more than one finger between the arm of the frame and your temple, they’re too wide.
  • If the arms actually touch your temple, the frames are too narrow.

Once you find a new pair of sunglasses or prescription glasses that are a good fit, the only thing left to consider is whether they make you feel good and look gorgeous. If the answer is yes, then buy those puppies and get outside!