Boston Glasses Blue Light Cut Date Glasses PC Glasses for Computers Black Stylish PC glasses, an essential item for modern people. From the liquid crystal screens of computers, smartphones, TVs, etc., which are used daily, strong light called blue light, which reaches the retina, is emitted. Long-term use can cause blurred vision, glare, and eye strain. PC glasses are an essential item to protect your eyes from such blue light. Blue light cut rate of 95%!! Please use it for office work with a lot of computer work and when using a smartphone at home. Blue light cut, UV cut!!! Not only for computers and smartphones, but also for UV protection!! The effects of UV-A and UV-B on the eyes are becoming a problem in recent years, not only from smartphones and computers. ・Blue light from smartphones and computers can cause not only eye fatigue but also sleep disorders, and there is a risk of disrupting the human circadian rhythm. Size Please refer to the image. Frame Black Only the main body will be included.