vision_knowledge

Anti-Reflective Coating for Anti Glare Glasses An anti-reflective (also known as anti-glare) coating prevents reflections from appearing on both the inside and outside of your eyeglass or sunglass lenses. No reflections on your lenses means more light is reaching your eyes, which inevitably improves your vision.Anti-reflective coating glasses lenses are practically invisible, so your...

What are prism glasses? Double vision is caused by light entering the eyes at the wrong angle, which sends two different images to the brain. Eyeglasses with prism lenses eliminate double vision. How do prism eyeglasses work? A prism is a shape with flat, transparent surfaces that bends light. Some people suffer from double...

What are Transitions Light Intelligent Lenses? Transitions Light Intelligent Lenses are fully clear indoors and automatically darken outdoors in seconds. By optimizing the amount of light your eyes receive, Transitions lenses help reduce glare, eye fatigue, and strain to create more effortless sight. Transitions lenses also block 100% of UV rays and protect against...

Single vision reading glasses A single vision lens features only one prescription. In the case of readers, this prescription corrects up-close vision; great for reading your favorite novel or just browsing on your phone. You can add this lens type to almost any frame. Bifocal reading glasses Bifocal reading glasses feature two separate prescriptions...

What is Blue Light? Contrary to UV light, blue light is emitted all around us, every day — both indoors and outdoors, from the screens on our digital device to the sun as the biggest source. Extended exposure to certain wavelengths may cause eye fatigue and discomfort, but don’t worry! Our blue light filtering...

Learn how to read your eyeglass prescription and compare different frames and lenses online. Find the right pair of glasses to suit your unique vision needs with knowledge of the basics of eyeglass prescription. Purchase prescription glasses online with confidence and make sure you get the right type of lenses, such as single-vision, bifocal,...