EyeBuyDirect is offering a 50% off coupon for it's “Blue Glasses.” The deal is you can buy one complete pair and the second pair is 50% off when you apply the coupon code.
EyeBuyDirect's Blue Glasses help reflect a portion of harmful blue light from computer screens, tablets, and mobile phones. I have a pair and they work as advertised reducing eye fatigue when looking and working on computer screens. They do have a blue tint to them. If you aren't sure you want the blue tint for everyday glasses it is a good idea to get some frames just for computer use. Of course switching between pairs might get tiresome.
The coupon code -s – EBDBLUE – and it expires January 31st. Remember to apply it in the shopping cart during checkout.