Improved sight for improved quality of life - with the Progressive Blue Light Blocking Reading Glasses by Optix 55 your eyesight will be better than ever. These readers are fitted with a blue light blocker that will reduce the harmful effects of the screens blue lights on your eyes, reducing eye strain, dryness and headaches. The progressive lens combine 3 different focal powers in one and are specially created to help you see clearly at different distances; eliminating the need to keep changing glasses throughout the day.