You won’t want to make any changes to this ALGORITHM. Featuring a classic square shape, injection plastic frame, and medium sized blue light lenses. We’ve crunched the numbers and know these are going to be your new go-to. Practice safe specs while you savor your screen time with our blue light lenses, featuring Blue Light Technology to block out potentially harmful light from screens and help prevent symptoms like headaches, blurry vision, + more. Featuring prescription - ready frames, so you can take them to your optometrist + have your Rx put in. Width: 140mm. Height: 44mm. Nose Gap: 18mm.