1.61 Blue Block Double Coating (Green & Blue) Single-Vision Finished Lens

1. Excellent Foundation of Optical Performance    
Ideal Balance Between Thinness, Lightness and Clarity    
It has a refractive index of 1.61, which ranks at a medium-to-high level in the refractive index system of resin lenses. For people with moderate to high myopia (400 degrees or above) or hyperopia, compared with lenses with lower refractive indices such as 1.50 and 1.56, it is thinner and lighter when correcting the same diopter. This not only reduces the overall weight of the glasses, eases the burden on the bridge of the nose and ears, and improves wearing comfort, but also makes the glasses look more exquisite and aesthetic, minimizing the awkwardness caused by overly thick lens edges. At the same time, its Abbe number is usually around 32. The Abbe number is used to measure the degree of lens dispersion—the higher the value, the smaller the dispersion. In scenarios such as daily reading, watching TV, driving, and fine manual work, it can provide wearers with clear, natural, and true visual effects, reducing the blurriness of color edges and rainbow light spots caused by dispersion, alleviating eye fatigue, and keeping the eyes comfortable at all times.    

2. High-Quality Lens Material    
Reliable Safety and Durability Guarantee    
It is made of high-quality resin material. Compared with ordinary resin materials, it is less likely to break when impacted by external forces, providing reliable safety protection for the eyes. It is suitable for people with high activity levels who are prone to glasses collisions, such as athletes, students, and those who often engage in outdoor activities.    

3. Unique Double-Coating Function    
Efficient Blue Light Protection    
With the popularity of electronic devices, people are exposed to screens of computers, mobile phones, tablets, and other devices for long periods. These devices emit a large amount of high-energy blue light. The 1.61 Blue Block Double Coating lens can effectively neutralize high-energy blue light and block harmful blue light through selective filtering. Studies have shown that long-term exposure to high-energy blue light may increase the risk of retinopathy, and this lens can significantly reduce such risk, providing strong protection for the eyes. Moreover, during the blue light filtering process, it does not affect normal color perception—wearers still see a bright and true-colored world, ensuring visual health without compromising the visual experience.    

Upgraded Anti-Reflection and Visual Optimization    
The double coating of this lens (a combination of green and blue coatings) performs outstandingly in anti-reflection. In daily life, reflections on the lens surface often cause troubles: under outdoor sunlight, reflections may block the view; when using computers indoors, light reflected from the screen can lead to eye fatigue. This lens significantly reduces reflection through double-coating technology. More light passes through the lens and enters the eyes, improving visual clarity and contrast, allowing wearers to perceive colors and details more sharply. Whether in bright or dim environments, wearers can enjoy clear and comfortable visual effects. The green and blue coatings have a synergistic effect in anti-reflection: the green coating reduces reflection in certain wavelength bands, while the blue coating works in other bands, jointly enhancing the overall anti-reflection performance of the lens. Additionally, the blue coating has a certain UV protection function, which can block UV damage to the eyes to a certain extent; the green coating makes the lens look more fashionable, meeting the aesthetic needs of different consumers.    

Durability and Easy-Cleaning Properties    
The double coating enhances the durability of the lens, which can generally meet higher hardness standards. It can better resist scratches during daily use and extend the service life of the lens. At the same time, it may have certain water-resistant and oil-resistant properties, making the lens surface less likely to be stained and easier to clean. For example, in rainy days or when contaminated with oil, water droplets and oil are not easy to adhere to the lens, and the lens can be restored to cleanliness with a gentle wipe.