Blue light cannot be efficiently filtered by the eyes, unlike other types of light, therefore more can reach the retina through the eye and bring damage to the eyes. Luckily, you can choose MYIAUR blue light blocking glasses to keep your eyes safe from the harmful effects of blue light. Wearing MYIAUR blue light filters glasses, you will get rid of eyestrain, blurred vision, dry irritated eyes, and headaches. As a result, you will improve the quality of your sleep and wake up energized. - Frame Shape: Round - Frame Material: Acetate - UV Protection: Yes - Rx-able: Yes - Frame Width: 140mm/5.51in - Lens Width: 48mm/1.89in - Lens Height: 42mm/1.65in - Bridge Width: 22mm/0.87in - Temple Length: 147mm/5.79in Not only do MYIAUR's stylish blue light blocking glasses protect your eyes, but they also make you look extra beautiful.