✔️ANTI BLUE LIGHT - Veltri Optics lenses are meant to block 95% of harmful blue rays from all digital devices that can cause eye strain, headache and lack of sleep. ✔️PC Lens - Unlike other lenses, Veltri Optics lenses are clear not yellow and are super durable, made out of high end space technology used to block the eyes from harmful blue rays. ✔️Ultra - lightweight (Unisex)TR90 frame for superior comfort and durability.