Pair of CR39 1.61 Monofocal Lenses – thin, lightweight, and high-performance – suitable for prescriptions up to Sphere ±6.00 and Cylinder ±2.00. Made from organic material, CR39 1.61 lenses are the ideal solution for those seeking the best balance between aesthetics, comfort, and visual quality. Compared to traditional CR39 1.50 lenses, they are up to 30% thinner and lighter, delivering a more refined look and a superior lightweight feel—even with low prescriptions. They offer excellent clarity, outstanding optical quality, and 100% protection from UVA and UVB rays. Compatible with all types of frames, including rimless models. CR39 1.61 lenses are available with 4 different coatings to meet various needs: Anti-glare + Hard Coating: Enhances light transmission up to 98%, reducing glare and improving sharpness. The hard coating increases lens durability and helps limit scratches. Blue Light Filter + Anti-glare + Hard Coating: Reduces visual fatigue caused by digital screens (PC, smartphone, TV, LED), preventing symptoms such as dry eyes, headaches, and blurred vision. Recommended for those using electronic devices for more than 2–3 hours a day. Photochromic + Anti-glare: Automatically adapt to light – darkening in sunlight and returning clear indoors or in the absence of sunlight. Perfect for those who want sun protection without having to switch glasses. Sunglass Tint: Provide sun protection with solid or gradient tints, available in different shades. Ideal for those seeking sunglasses with vision correction, combining comfort and style.