A national press ad in UK, seen on 24 January 2015, stated “Have you seen the (blue) light? . Did you know that some blue light, from smartphone screens to sunshine, can affect your eyes?...Many modern gadgets, whether it’s a fancy LED TV or your smartphone, as well as sunlight and energy-saving light bulbs, give off a certain kind of blue light that can cause your retinal cells to deteriorate over time. Boots Opticians can help you protect your eyes from harmful blue light, reducing damage to retinal cells. For GBP 70 (US $106.82), new Boots Protect Plus Blue lenses come with a special finish that filters out the harmful blue light and eases eye strain and fatigue”.