Do your eyes feel dry and tired every day? If you spend more than three hours in front of the screens (laptop, phone, TV, etc.), then find out that the blue light emitted slowly damages your vision! It's time to take safety measures! A pair of computer glasses will protect your vision by effectively filtering harmful light from the blue and ultraviolet spectrum. Careful! The frame does NOT allow the fitting of lenses with diopters. Did you know that these anti-reflection glasses can be worn by anyone? An important advantage is that they do not have diopters, and these square frames are very modern. You will definitely like them! You won't be able to part with them! In addition to reducing eye fatigue and improving contrast, these blue light blocking glasses are lightweight. Order them now! Specifications: For: unisex; Frame style: square; Frame color: purple; Materials: TR90 (frame), polycarbonate (lenses); Lens width: 52mm; Lens height: 44mm; Arm length: 147mm; Nasal bridge: 19mm; Frame width: 139mm; Weight: 16g; Careful! The glasses are sold without case, cloth or other accessories.