Product description PROGRESSIVE MULTIFOCUS READING GLASSES Progressive readers is structured as a gradual transition in strength: The upper section provides the strength you need to see clearly at a distance. The lower section provides the lens power to see clearly up close. The middle section combines both and helps you see clearly at intermediate or medium distances. SINGLE VISION vs BIFOCAL vs PROGRESSIVE SINGLE VISION Single vision lenses have a uniform prescription power throughout the entire lens, designed to address a single vision need, such as for distance or reading. BIFOCAL Bifocals are glasses that have two viewing zones separated by a visible line – traditionally, a larger section for distant vision and a smaller one for reading purposes. PROGRESSIVE Progressive Lenses are no-line multifocal lenses with up to 3 viewing zones for distance, intermediate, and near vision. PROGRESSIVE LENS BENEFITS 1. You’ll only need one pair of glasses for all your activities. 2. Progressives don’t have a disruptive “jump” between lens powers. 3. Progressives can be better for your posture, and even help to prevent computer vision syndrome. 4. Progressives don’t draw attention to themselves or your age. 2 IN 1 PHOTOCHROMIC READERS OuShiun transition reading glasses are featured to be darkened to light grey shades in response to UV rays and then gradually clear up once away from sunlight. This unique functionality makes them an excellent choice for people reading outside without dazzling the eyes. METAL INSERT Premium metal insert, chic pattern SPRING HINGES Easy to open and close, flexible and durable COMFORTABLE NOSE PADS Won't press nose, comfortable to wear TEMPLE Flexible material, fashion pattern CLASSIC, RETRO, FASHIONABLE, AND UNISEX DESIGN This particular style of photochromic progressive readers boasts a timeless design that is suitable for both men and women. It seamlessly combines practicality with a touch of fashion, making it an absolute essential that you don't want to overlook.