Clip-ons

Story In 2011, our journey began with a heartfelt mission. Our founder, a researcher at UPenn, designed a pair of colorblind glasses for his best friend, who had long struggled with color deficiency. Witnessing the joy and wonder of seeing color for the first time was a life-changing moment—one that sparked the creation of Pilestone. What started as a simple act of friendship has now grown into a global movement. With branches around the world, we've helped over 40,000 people experience the beauty of color. At Pilestone, we believe everyone deserves to see the world in its full vibrancy, and we’re honored to be part of that journey. Key Features Universal Fit – One-size-fits-most design easily attaches to most framed glasses. Lightweight & Flexible – TR90 clips provide durability without adding bulk. Secure & Scratch-Free Grip – Rubber tips prevent slipping and protect lenses. Convenient & Portable – Easy to clip on and remove for versatile use. Lens Guide Lens Type Color Deficiency Best For Usage Features Lens A Mild to moderate red-green Balancing red and green Bright indoor & outdoor (best outdoors) Silver-plated, UV protection, blue light protection, anti-glare, anti-drop Lens B Strong to severe red-green Enhancing red-green balance Bright indoor & outdoor (best outdoors) Silver-plated, UV protection, blue light protection, anti-glare, anti-drop Lens C Mild to strong red-green General indoor use Indoor (can be used outdoors in low sunlight) Anti-glare, anti-drop Lens D Protan (red-weak vision) Extra red color correction Indoor (can be used outdoors in low sunlight) Anti-glare, anti-drop Lens E Tritan (blue-yellow deficiency) Balancing blue-yellow Bright indoor & outdoor (best outdoors) Silver-plated, UV protection, blue light protection, anti-glare, anti-drop