D49c52a4102f6df7bcf8d0617ac475ed May 2026

The string is 32 characters long, hexadecimal (only letters a–f and numbers 0–9). This matches the format of an MD5 hash (or part of one). Hashes are one-way cryptographic outputs — they are not data themselves, but a fingerprint of data. Without knowing the original input or context, the hash is meaningless for creating a factual paper.

Here is why, along with what I can do to help you instead:

It is not possible for me to generate a meaningful academic or research paper based solely on the string "d49c52a4102f6df7bcf8d0617ac475ed" .

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The string is 32 characters long, hexadecimal (only letters a–f and numbers 0–9). This matches the format of an MD5 hash (or part of one). Hashes are one-way cryptographic outputs — they are not data themselves, but a fingerprint of data. Without knowing the original input or context, the hash is meaningless for creating a factual paper.

Here is why, along with what I can do to help you instead:

It is not possible for me to generate a meaningful academic or research paper based solely on the string "d49c52a4102f6df7bcf8d0617ac475ed" .

X
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At ContactsExpress, we're committed to keeping your orders moving, even with potential Canada Post disruptions. We've secured alternative carriers to ensure your eyewear arrives quickly and reliably.
Our priority is minimizing delays and giving you the best shipping experience possible.
If you have any questions, our customer care team is here to help at [email protected] or .
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$10K Canadian Getaway Giveaway
To show Canadians there's so much more to see, we're giving away a $10,000 getaway anywhere in Canada. One lucky winner will plan their dream vacation with flights, 5-star stays, unforgettable experiences, and a KITS shopping spree.
Every purchase made on Kits.com by October 31 will automatically receive 100 entries. For more ways to win, be sure to check us out on Instagram @kitseyecare.
Giveaway ends October 31, 2025 at 11:59 PM PT. Open to Canadian residents 18+. Prize details and inclusions are set by KITS and may be changed, substituted, or cancelled at any time. No cash value. No purchase necessary. Free entries available on Instagram.

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*Discount applied on the current website price at the time of order. Offer only valid for new customer first contacts order over $10. Maximum discount of $100. Cannot be combined with any other offers. Promotions are subject to change without notice. We reserve the right to cancel orders that are in breach of the terms and conditions of this offer.

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Save 15%
Increased savings
on future orders
d49c52a4102f6df7bcf8d0617ac475ed
Price-Match Guarantee
On every order
d49c52a4102f6df7bcf8d0617ac475ed
Free Shipping
on all future orders
d49c52a4102f6df7bcf8d0617ac475ed
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Top tier savings & perks with each reorder
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*See autoship page for details!
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Measurements
If you already have a pair of glasses, you can compare the measurements to your current frame. Just look inside your temple to find your frame measurements. The overall frame size is a combination of lens and bridge's width measurements.
d49c52a4102f6df7bcf8d0617ac475ed
Lens Width Bridge Width Temple Length
XS < 42 mm < 16 mm <=128 mm
S 42 mm - 48 mm 16 mm - 17 mm 128 mm - 134 mm
M 49 mm - 52 mm 18 mm - 19 mm 135 mm - 141 mm
L >52 mm >19 mm >= 141 mm

Get your perfect fitting Glasses

Buying eyewear should leave you happy and good-looking. Use our sizing tool to find frames that best fit your unique facial measurements.

PD Measurement

PD, or Pupillary Distance, is the distance between your pupils. It's a crucial measurement for ensuring the perfect fit of your glasses. Measuring your PD is now easier than ever with our new camera-based PD measurement tool.

Camera-Based PD Measurement

Our camera-based PD measurement tool utilizes the camera on your mobile device or computer to provide you with an instant and precise measurement. For the most accurate results, we recommend using an iPhone, as it takes advantage of the depth-sensor in the front-facing camera.

1. Click "START NOW" below.
2. Grant camera access if prompted.
3. Follow the on-screen instructions to position your face correctly.
4. Get your instant and precise PD measurement.


We've designed this tool to be quick, user-friendly, and highly accurate, ensuring you have the most precise PD measurement for ordering your glasses.

Don't have a camera-enabled device? No worries! We also offer a print and measure method for obtaining your PD. Click on the download link below to get started.

At Kits, we're dedicated to providing you with a seamless and customer-focused eyewear experience. With our easy-to-use PD measurement tools, you can confidently order glasses that fit you perfectly.

Let's get started on your journey to impeccable vision! Choose your preferred method below:

1. Use Our Online PD Measurement Tool

Grab a regular card with a magnetic stripe on the back. Student IDs, credit cards and gift cards work well to start our online PD tool.

2. Use Our Paper PD Measurement Tool

You may have received our paper PD measurement tool in your recent online order. In order to use this tool, place the ruler on your eyes so that the "0" lines up at the centre in between your eyes. Add up the two numbers, to get your PD. See example below:

d49c52a4102f6df7bcf8d0617ac475ed

3. Download and Print Your Own PD Measurement Tool

Click on this link to download and print your own PD measurement tool.

DOWNLOAD