SummerGlo is our yellow lens for use during the daytime. SummerGlo lenses come with blue light blocking infused with colour therapy. These glasses are to be worn during the day when under artificial light or using your computer. They block 100% between 400nm to 450nm which is the problem blue light found in LED light sources. This helps those who have symptoms of light sensitivity like migraines, anxiety or stress. The yellow colour therapy uplifts your mood making you have a happier more fulfilling day.