At David Kind, we're redefining the direct-to-consumer eyewear industry with our patented photo measurement system. This innovative technology allows us to keep costs low while delivering exceptional accuracy and a seamless customer experience. What makes our system truly special is its ability to capture precise measurements that ensure every pair of glasses fits perfectly and delivers optimal vision.

Our Home Try-On experience is one of the most popular ways customers discover their perfect frames. But what really sets David Kind apart is the final step in the process—requesting a photo at purchase. This image allows us to accurately measure your pupillary distance and vertical lens height, just like an optometrist would do in person. These are critical details that ensure your prescription lenses are perfectly aligned for your unique facial structure.

These measurements are vital for clear, comfortable vision. They can be taken by your doctor or through our patented photo technology. Our system has helped reduce the eyeglass remake rate from the national average of 11% (including in-person) down to an impressive 3%. That’s something we’re incredibly proud of. Curious to learn more? We’ve broken down some key details below about how these measurements work and why they matter so much. You can also find out more about our patent and how it contributes to your perfect fit here.

What is your Pupillary Distance (PD)?

Your Pupillary Distance (PD) is the distance between the centers of your pupils, measured in millimeters. It's a crucial measurement that ensures you look through the clearest part of your lenses. PD typically remains stable after adulthood and plays a key role in the comfort and clarity of your vision.

What is your Optical/Ocular Center Height (OC)?

The Optical Center (OC) height refers to the vertical position of the center of your pupil relative to the bottom of the lens. This measurement varies depending on the frame you choose. While many brands use a standard OC, David Kind uses our patented technology to provide accurate vertical alignment, ensuring your lenses are precisely positioned for your face shape and frame choice.

What is your Segment Height (SEG)?

Segment height is especially important for progressive or bifocal lenses. It determines where the different focal points of the lens sit within the frame, based on your eye position. This measurement can be adjusted by your optician to suit your lifestyle and daily activities, such as driving or working on a computer.

While many online retailers offer virtual try-ons, we believe nothing beats the real experience. Our Home Try-On lets you see and feel the frames before committing, and when combined with our patented photo measurement system, we can capture the exact details that make all the difference. Inaccurate measurements can lead to visual discomfort, headaches, and blurry vision. That’s why we go the extra mile to ensure your glasses not only look great but feel amazing too.

If you have any questions, don’t hesitate to reach out to us . We’re here to help!

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