Reason for wearing anti blue light glasses Headaches, sore or tired eyes, and stiff necks are all symptoms of digital eye strain. Blue light from our computers, phones, and tablets causes our eyes to not only work harder, but puts them at risk of aging faster.   Q&A 1. Is there an adjustment period? For most people they will work right out of the box. For a small number of people, it may take a while to get used to them especially if you're not used to wearing glasses before, during this adjusting period you may experience discomfort or headaches. We recommend trying the glasses for a week or two and see if things improve. Also don't forget to take breaks every 20 mins or so, and let your eyes rest in a dark area (if possible) to minimize eyes train! 2. How to test the glasses? Use the blue light torch to beam the blue light testing card and we can see that part of test card beamed by the torch has turned blue, and the part shaded by Blue Light Blocking Lens has not turned blue. 3. Can I test the glasses online? These online tests are designed for orange colored sleep glasses only. Orange glasses work by removing the entire blue spectrum, turning your entire vision orange. But our blue light shield glasses are designed to block out the most harmful part of the light spectrum and let through the less harmful rays to reduce color distortion so you can see near normal colors. Specifications: Non-magnified glasses Material: memory TR90 frame + AC anti-blue light lens Color: black Lens width: 5.4CM Bridge width: 1.6CM Arm length: 14.5CM Height: 4CM Weight: 15G Package include: 1 * Blue-ray resistant glasses 1 * Glasses case 1 * Cleaning cloth
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