• RICH CLUB blue light blocking glasses cut 100% of harmful blue light and enhance other light that is beneficial to human health. • Headaches caused by a new eyeglass prescription are common. • Usually, they go away within a few days as your eyes adjust. • If your headaches don't dissipate within a week, call your doctor, especially if you're also dizzy or nauseous. Our proprietary lens has embedded Blue Light filtering material inside .This allows it to remain both clear and effective , particularly filtering out the highest energy wavelengths .Over exposure to Blue Light can lead to symptoms like eye strain, headaches ,and sleep disruption.