These stylish unisex reading glasses from Barner are considered some of the highest quality reading glass/ blue light filter glasses on the market. They have CR-39 organic lenses and long lasting TR-90 frames. These high quality and stylish glasses will protect your eyes from the blue light from digital devices such as computers and mobile phones. Blue light can disrupt sleep patterns so these will give you a better quality of sleep and a healthier life. Barner glasses block 100% of the blue light under 410nm and 45% of the blue light on the 410nm450nm spectrum, so your eyes will always be protected. They are lightweight and ultra comfortable with flexible hinges and temples for an adaptable fit and a rubberized texture for better grip on the nose and ears Barner's collections are all made from a range of sustainable materials. Barner believe in making a positive impact on people and the planet. They have partnered with Tree-Nation to offset emissions, and aim to introduce the UN