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Tonic Eyewear North America

Signed in as:

filler@godaddy.com

  • Home
  • Dealer Locator
  • Tonic Store
    • Tonic Master Collection
    • Tonic Sizing Guide
  • Finding the right pair
    • Finding Your Frame
  • Tonic Warranty
  • Return Policy
  • Press Releases
  • Privacy Policy
  • Terms and Conditions
  • Contact Us
  • Members Only
    • Our Display Cases
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A Visual Guide to DIY Frame Measurement

Eyeballing Your Eyeglasses: A Visual Guide to DIY Frame Measurement In the old days, when you used to pay steep prices to buy glasses from the local optical store, you could try them on to see how they fit. Buying glasses online is uncharted territory for many, but there's no need to worry!   The good news is that it's easy to find your frame measurements to ensure you're getting the right fit. The better news is you're going to save a bundle ordering glasses from Tonic.   Follow the handy guide below to measure your glasses and make shopping easy!   Once you find your frame measurements, you can browse our selection, find the style you want, and order the perfect pair of glasses.

What Are Frame Dimensions?

Frame Width

Lense Height

Lense Height

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Measure horizontally across the entire front of the frame. Include any lug or hinge pieces that stick out on the sides.

Lense Height

Lense Height

Lense Height

Measure the lens vertically, at its tallest point. For bifocal or progressive prescriptions, the lens height must be at least 30 mm.

The Bridge

Lense Height

The Temple Arms

Measure horizontally, at the top of the bridge, from the edge of one lens to the other.

The Temple Arms

The Temple Arms

The Temple Arms

Measure from the hinge—where the arm connects in the front— to the spot where the arm begins to bend down around the ear. Then measure from the top of the bend to the bottom tip. Add the two sections together for the total temple arm length.

The Lense Width

The Temple Arms

The Lense Width

Measure the lens horizontally, at its widest point. Make sure the lens width accommodates your pupillary distance so that your eyes align with the “optical center” of the lens.

Don't Forget to Write the Measurements Down

Don't Forget to Write the Measurements Down

Don't Forget to Write the Measurements Down

Don't Forget to Write the Measurements Down

Don't Forget to Write the Measurements Down

Don't Forget to Write the Measurements Down

Download PDF

Keep in Mind...

If the SPH on your prescription is +/-6.00, it’s best to stick with lens widths lower than 50 mm. This will keep your lenses thinner.

Almost Done

Once you have the following measurements for your frame dimensions and face, go to the Tonic Sizing Guide to find your perfect pair of Tonics

face measurement

Copyright © 2021 Tonic Eyewear North America - All Rights Reserved.                                Merchant outlet located in the united states

  • Dealer Locator
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  • Finding Your Frame
  • Tonic Warranty
  • Return Policy
  • Press Releases
  • Privacy Policy
  • Terms and Conditions
  • Contact Us
  • Our Display Cases
  • Fittingbox test

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